Abstract: An audio visual karaoke system using a karaoke audio cassette to which high frequency signals have been added containing specific data information. In the audio player, these high frequency signals are separated from the audio signals by a high pass filter ("HPF"). Using a data converter, the high frequency signals are converted into data information. Subsequently, this data information is processed by a microprocessor and a display controller to generate lyrics or other information, which are displayed on a display device.

Abstract: A Karaoke apparatus in which after one Karaoke play was finished, a show-up effect according to the next Karaoke playing music piece is obtained for a period of time until the start of the next Karaoke play. Control information of a plurality of music pieces is previously reproduced by the reproducing means from the recorded information on a recording medium and is stored in memory. When one of the plurality of music pieces is selected by an operation, the control information corresponding to the selected music piece is read out from the memory and is supplied to the external apparatus to thereby start the operation. After that, the recording medium is played with regard to the selected music piece, thereby starting the reproduction of the Karaoke playing sound.

Abstract: An automatic performance apparatus with an improved non-performance state display device. The automatic performance apparatus includes a memory device for storing automatic performance data for a plurality of parts, a performing device for reading out the automatic performance data for a plurality of part and performing a plurality of parts, and a display device for displaying a score of a plurality of parts based on the automatic performance data read out. It also includes a designating device for designating a part in the score being displayed on the display means, a performance controlling device responsive to the designating device for controlling the performing device to set the part designated in a non-performance state, and a display controlling device responsive to designation of the designating device for controlling the display device to display that the designated part is in the non-performance state.

Abstract: An arrangement support apparatus for producing automatic accompaniment performance data for a musical tune. The musical tune is divided into a plurality of sections, and an arrangement condition is input for each of the sections. Utilizing the arrangement conditions, the apparatus selects an accompaniment pattern corresponding to at least one accompaniment performance part for each of the sections of the musical tune. The apparatus then produces automatic accompaniment performance data for the musical tune utilizing the selected accompaniment patterns.

Abstract: A musical slide rule having a slide rule body in the form of a flattened sleeve having two flat surfaces defining a front and back side at two substantially parallel edges and having two open opposing ends. The front and back sides have spatially arranged (horizontally and vertically) apertures and music data printed thereby for displaying cooperative music data which is printed on a flat slide which is inserted through and between the front and back side of the slide rule body at one of the two opposing ends. The slide is operatively positioned by the user to display a correlation between the music data of the slide (showing through the apertures of the slide rule body) and the music data of the rule body.

Abstract: The invention is a music teaching method designed for the student of non-pitched percussion instruments incorporating two major components. First, a limited selection of basic percussion exercises and variations written for one or more percussion instruments is printed on opaque music manuscript paper or other music display media. Finally, a series of overlays including preprinted, complimentary percussion music exercises is provided for use in combination with the aforementioned basic percussion exercises. The overlays may be alternately superimposed in a functional relationship with the basic percussion exercises to create hybrid percussion exercises having adequate visual representation of the repetitive rhythmic patterns inherent in percussion music. Thus, an exhaustive collection of percussion exercises may be provided in a reasonably sized volume, reducing the cost of a more cumbersome printed volume that would be impracticable to publish and market.

Abstract: A performance-information analyzing apparatus, which is employed by an electronic musical instrument, is provided to analyze performance information which represents at least a pitch and a key-on timing with respect to each sound to be produced. A note length is calculated on the basis of a key-on interval representative of a time interval between two key-on timings. One note length, whose frequency of occurrence is relatively high, is selected from among a plurality of note lengths sequentially calculated with respect to a plurality of sounds to be produced. A pair of time and location of bar-line is automatically determined in accordance with a predetermined condition on the basis of the note length selected. The selection for the note length can be made under the consideration of the number of the notes which have the same pitch and which indicate a continuous sound to be described between two measures across the bar-line in the score.

Abstract: A musical sound producing device produces musical sound from MIDI data. The MIDI data includes play data for producing musical sound of plurality of tones, pitch data for designating pitch of the musical sound and pitch variable/invariable data indicating pitch variable tones and pitch invariable tones. The device includes: MIDI sound source for producing musical sound of tones designated by the play data with pitch designated by the pitch data; and pitch change circuit for changing the pitch data of only pitch variable tones specified by the pitch variable/invariable data in accordance with pitch change information.

Abstract: A musical instrument instruction system utilizes a CD-ROM electronic storage medium to store audio and video musical instrument instructional materials. Instructional materials are accessed utilizing a computer which provides an interactive system in which animation, voice, music, video and imagery are integrated in essentially real time and under complete control of the music student. The system permits the student to access the instructional materials in a variety of ways, and control the parameters governing the presentation of the instructional materials, including control of the tempo of the music and whether or not displays of the manner of playing the musical instrument will be shown with a displayed notation or tablature relating to the selected musical piece. A mixer is provided for combining musical output of the practice instrument with musical output generated by the computer corresponding to the selected musical piece.

Abstract: A decentralized, expandable prompter device for special musicians and orchestras consists of a prompter control box (1) manned by a teacher/operator who activates one of three momentary switches (2a, 2b, 2c) to light corresponding L.E.D.'s (6a, 6b, 6c) attached with velcro proximate to the corresponding keys/frets of one or more instruments up to a maximum of 10, thus prompting the special musician to play that note.

Abstract: A method of displaying a title and lyrics of the first measure of a reserved song before the end of a currently performed song includes steps for calculating remaining time by comparing total performance time with an elapsed time of a currently performed song, obtaining a title and lyrics information for the first measure of the reserved song responsive to a reserved song number when the remaining time is less than a predetermined value, and displaying the title and the lyrics information superimposed on a background image associated with the currently performed song. The method for displaying title and lyrics information using a video-song accompaniment apparatus enhances user convenience by displaying the title and associated lyrics for the first measure of a reserved song for verification before a currently performed song ends. A video-song accompaniment apparatus capable of performing this method is also described.

Abstract: In a karaoke system capable of scoring a singing of singer on an accompaniment thereof, when a voice signal of the singer is inputted, an energy detector generates a first basic frequency signal with respect to a voice signal section and inputs the first basic frequency signal to a comparator. And then, an audio signal in the voice signal section is inputted to the comparator as a second basic frequency signal. The comparator compares the first and second basic frequency signals with each other and calculates a difference value therebetween, and then inputs it to a microprocessor. The microprocessor outputs a signal for scoring the singing of the singer on the basis of the difference value.

Abstract: An apparatus for giving marks on user's singing ability in karaoke system uses a cross-correlator. The cross-correlator gives marks on singing ability on the basis of the similarity order between accompaniment signals of karaoke system and user's singing voice signals. The karaoke system can give marks of user's singing ability in consideration of rhythms and musical intervals, and so on, by using the apparatus.

Abstract: Plural electronic musical instruments are connected to a bidirectional communication network, and a controller is provided for each of the musical instruments for performing control such that tone control information possessed by the musical instruments can be shared between the musical instruments. A data base may further be connected to the communication network so that tone control information possessed by the data base can also be utilized in each of the musical instruments. If any of the musical instruments does not possess certain tone control information, the musical instrument is allowed to utilize the tone control information by receiving the information from another electronic musical instrument, via the communication network, which possesses the information.

Abstract: An apparatus to assist the musical instruction of a student including one or more tone sources (e.g. flute, human voice, violin) playing monophonically as inputs, means to quantify aural parameters of pitch, amplitude, duration, and timbre of inputs, means to visually store and represent temporal history of said, means to store and playback audio signal of inputs, and means to arrive at and display musical related pitches. A digital waveform analyzer is used to control a tunable low-pass filter in the pitch tracker and preform spectral estimation of timbre. Also, a digital version is described. Pre-recorded music instruction and a karaoke player are used as examples of reference tone sources. Visual representation of aural parameters can be provided as video output.

Abstract: A karaoke apparatus evaluates a singer's performance by employing: a microphone for converting the singer's voice into a electrical voice signal; a first analogue to digital (A/D) converter for converting the electrical voice signal into a digitized voice signal; a audiovisual equipment for producing the accompanying music; a second A/D converter for digitizing the accompanying music to produce a digitized accompaniment signal; and a performance evaluator for measuring the difference between the accompanying music and the corresponding karaoke singer's voice to produce a score for the karaoke singer's singing performance.

Abstract: An electronic musical instrument includes an ROM which stores tone color parameters for determining musical tone characteristics of musical tone signals. Operating elements are operated to create operation information for controlling the musical tone characteristics on real time basis. A tone generator circuit generates the musical tone signals, based on the cone color parameters read from the ROM and the operation information created by the operating elements. Scene memories and a RAM store the operation information created by the operating elements. The operation information is read from the scene memories or the RAM, in response to an instruction from the operator. The operation formation thus read is supplied to the tone generator circuit.

Abstract: In order to use a plenty of waveform data, representing sampling waveforms of sounds produced from musical instruments, an electronic musical instrument provides a hard disk unit. Herein, musical tone information containing the waveform data is registered into the hard disk unit in the form of a file using a specific file name. When registering the file into the hard disk unit, a string of characters representing a musical property of the musical tone information are automatically created and are used as a part of the file name. Each file name incorporates an identifier made of one or more characters. When a new file name, which is automatically created and is assigned to a new file to be newly registered into the hard disk unit, coincides with the existing file name of the file which has been already registered in the hard disk unit, a new identifier is automatically created and is incorporated into the new file name.

Abstract: A method for controlling a musical medley function in a karaoke television includes steps for randomly selecting song from a class of songs having similar form or theme, and continuously playing songs from the selected class. The user sets a minimum reference mark and the target number of challenging songs. Each song performed is graded, thus allowing the singer to proceed to a next song only when the graded mark exceeds the reference mark. The method includes a step for providing a celebrator message and fanfare when the number of played songs equals the target number of challenging songs, thereby prompting the user to take added interest in singing. The method is adaptable in karaoke televisions and is particularly useful in household karaoke televisions.

Abstract: In a music accompaniment playing system, MIDI (Music Instrument Digital Interface) sound source controlling data to control a MIDI sound source for generating accompaniment music information for music accompaniment playing, and display controlling data to perform a display corresponding to the MIDI sound source Controlling data, are reproduced from a record medium for music accompaniment playing. The display controlling data includes lyrics data corresponding to lyrics for music accompaniment playing, and accompaniment chord data corresponding to an accompaniment chord of the accompaniment music information.

Abstract: An electronic musical instrument has a voice-inputting function. Voice information and performance information are input to the instrument. The instrument stores performance data therein. Each item of performance data stored is sequentially read out. The next item of performance data is read out when it is determined that at least one of the voice information and performance information being given agrees with each item of performance data sequentially read out. The instrument includes a plurality of operating elements for performance. Display devices are provided for the operating elements, respectively. When voice input is detected, one of the display devices, corresponding to one of the plurality of operating elements, is lighted, which corresponds to the pitch name of the detected voice. When voice input ends, the light in the display device is turned off. The instrument sequentially stores the voice information being sequentially read out in another operating mode.

Abstract: A method and an apparatus for controlling scale practice of an electronic musical instrument. The apparatus includes a function select switching section for selecting a desired one of various functions according to a user's selection. The function select switching section is provided with a scale practice switch, a scale select switch, a minor switch, an increment switch, a decrement switch, a random switch and a note hearing test switch. If the scale practice switch and the scale select switch are selected, sequentially varied scales are displayed on a display unit and one thereof is then selected by the user. The selected scale is displayed on the display unit. A minor or major of the selected scale is set if the minor switch is selected. Tunes with sequentially incremented or decremented notes and randomly varied notes are selected if the increment or decrement switch and the random switch are selected. The selected tunes are displayed on the display unit according to the selected scale.

Abstract: A musical instrument including an actuator which generates a plurality of signals in response to being played by a user; an audio synthesizer which generates audio tones in response to control signals; a memory storing a musical score for the actuator; a video display unit; and a digital processing means controlling the audio synthesizer and the video display unit. The stored musical score includes a sequence of lead notes each of which has an associated time stamp to identify a time at which it is supposed to be played in the musical score.

Abstract: A television with a karaoke player has a video function accompanied with music to which a medley function for classifying songs of the same form or theme and successively playing the classified songs by gathering them is added. According to a method for controlling the medley function, a microcomputer controls a display of thematic items of songs in response to a user's selection of the medley function. Upon selection of a thematic item, formational items of the songs are displayed. Songs falling in the selected categories are then played in order.

Abstract: An electronic musical instrument comprises a tone generator for generating a plurality of different digital waveform signals corresponding to different timbres, and a device for setting a plurality of ranges defined by two parameters, a first one of the parameters being a pitch parameter and a second one of the parameters being a key touch parameter. The parameters vary according to the musical performance, and a range for the pitch parameter in combination with a range for the key touch parameter respectively designating one of the plurality of different digital waveform signals having different timbres. An input device is provided for inputting the two parameters according to a musical performance.

Abstract: A karaoke reproducing apparatus for recording singing sound together with karaoke play sound, has a facility of printing information on the recorded musical program. The karaoke reproducing apparatus has a memory which contains previously stored recorded music information including at least the title, songwriter's name, and composer's name for each of musical programs recorded on the recording medium. In response to a recording start command, the recorded music information corresponding to a musical program selected by an operation is read from the memory, and output to a printer. Since recorded music information can be printed on a printed member such as a label and preserved as a record when singing sound is recorded together with karaoke play sound, the label, if adhered to a recording medium on which the sound is recorded, allows the user to readily know the recorded contents afterward.

Abstract: An apparatus for inputting MIDI information output from a sequencer or a keyboard and performing a predetermined process on the input MIDI information in accordance with an instruction from an operation panel to alter that information to new MIDI information or to generate new MIDI information in the apparatus in accordance with an instruction from the operation panel, and for outputting the altered or generated MIDI information to a tone generator to provide tone generation or the setting of a machine.

Abstract: A system for interactive multimedia entertainment that stores a plurality of video and/or songs and allows for the receipt of information concerning the cost of each song and other relevant information. The system has application to music listening, video entertainment and Karaoke entertainment systems.

Abstract: A karaoke apparatus for medley playback includes: playback unit for receiving playback information including MIDI sound source control information and producing acoustic sound of karaoke song on the basis of the playback information; information storage unit for storing playback information and identification information of a plurality of karaoke songs, the identification information specifying playback information of a highlight portion of each of the plurality of karaoke songs; selection instructing unit for instructing a selection of karaoke songs to be played; and playback control unit for reading out playback information of the highlight portions of the songs selected by the selection instructing unit from the information storage unit on the basis of the identification information of the each of the selected karaoke songs, and controlling the playback unit to successively play the selected karaoke songs on the basis of the playback information of the selected karaoke songs to produce a medley of the sele

Abstract: Disclosed is a karaoke authoring apparatus for mixing or authoring karaoke music data based on an electronic music sound source. The invention can analyze chronologically, in a sound reproduction block, the musical performance data expressed by a code such as MIDI code and has a pre-inserted event code, and will generate an interrupt in a timer circuit at a time interval based on the tempo instruction on the code. The invention can also acquire, as an individual file at the timing of the event code, an integrated value given by the timer circuit in accordance with the type of event, and combine and arrange these files in chronological order to calculate a time difference between consecutive event codes, for producing time data. The authored data allows color turning of the words of the music, page turning, presentation of the title of the music and a video image update which is performed accurately to the timing as planned, in synchronism with the musical performance.

Abstract: A positional effect sound generation apparatus for an electronic musical instrument includes a function selector for selecting a function according to a user's selection, a note sensing circuit for sensing a note corresponding to a key on a keyboard pushed by a performer, a storage unit for storing a plurality of control signals, a CPU for selecting ones of the control signals in the storage unit corresponding to the selected function and the sensed note, a ROM for storing a plurality of sound data, a sound generator for selecting a desired one of the sound data in the ROM in response to the control signal from the CPU and generating a sound signal according to the selected sound data, a sound processing circuit for processing the sound signal from the sound generator and generating an analog echo effect sound signal, a mixer for mixing the processed sound signal with the analog echo effect sound signal, a display controller for controlling a display unit in response to the control signal from the CPU to disp

Abstract: An electronic musical instrument having a plurality of switches is disclosed wherein a numerical value can be inputted without provision of a specific switch for inputting a numerical value. The electronic musical instrument has a tone/effect inputting mode in which, when one of the switches is operated, a tone or acoustic effect allocated in advance to the operated switch is set and a numeric inputting mode in which, when one of the switches is operated, a numerical value allocated in advance to the operated switch is set. A change-over switch is provided for changing over the operation mode between the tone/effect inputting mode and the numeric inputting mode.

Abstract: A score evaluation display device for an electronic song accompaniment apparatus has an audio signal processing unit to evaluate a user's singing. A sampling processor samples the difference between an input song signal from a microphone and reference song signal, a volume deference detector detects a voltage difference between these two signals, a rhythm difference detector detects the difference in rhythm between these two signals, and an adder sums the outputs of the volume difference detector and the rhythm difference detector, thereby producing a finally evaluated score. Accordingly, a more reliable and accurate evaluation can be performed for a user's singing, based on the difference between the microphone's input song signal and the reference song signal.

Abstract: An external memory medium storing data corresponding to a desired automatically playing or tone color selecting function can be removably set, so as to expand various functions of an electronic musical instrument. An identification code is recorded in the medium, and thus the function of the medium can be automatically determined from the code. The instrument is automatically set to an operation mode corresponding to the function in accordance with the determined function so that the data stored in the medium can be utilized. The determined function may be displayed to the player.

Abstract: In a Karaoke apparatus, a sound synthesizer reproduces an instrumental accompaniment of a song requested by a singer during the course of a vocal performance of the song by the singer. A whole of the instrumental accompaniment is provisionally divided into a plurality of blocks each having a start address and an end address. A detector successively detects start and end addresses of each block with progression of the reproduction of the instrumental accompaniment. A skip command is inputted by a skip switch when a certain block is being reproduced. A controller responds to the detector and the skip switch, and operates when an end address of said certain block is detected for controlling the sound synthesizer to skip an immediately succeeding block to thereby continue to a start address of a further succeeding block during the course of the reproduction of the instrumental accompaniment. Further, a repeat command may be inputted by a repeat switch so as to effect repeat reproduction of a certain block.

Abstract: A musical instrument training system for a stringed musical instrument having a body, a fingerboard, a plurality of strings, and an electric pickup. A fingering display (left hand) and a playing display (right hand) are mounted on the fingerboard. A control circuit, mounted on the body, receives input signals from one channel of a stereo for controlling the fingering and playing displays. The fingering and playing displays comprise an array of LEDs and LCDs that indicate the strings to finger, the fingers to use, the strings to play and the direction of play. A freeze control permits the user to "freeze" a section of the input signals in a buffer for repetitive practice. A tuning circuit permits the user to compare the tone of a string with a stored tone via a tuning display to help tune the instrument.

Abstract: Musical score can be displayed by a simple operation, thus permitting musical score to be easily seen when playing the music. Namely, musical score data of a plurality of pieces of music are stored in the musical score display, and when a piece of music is selected, the musical score data of this piece of music is read out and displayed, and thus musical score data can be easily selected and displayed. Musical score data that has been read out and displayed can be changed according to a feeding of a page. The displayed musical score, and the musical score page feed can be easily effected while playing the music. As a result, displayed musical score is changed according to a progress of a musical repeat for example Da Capo, Dal Segno, Al Fine, bis, etc.

Abstract: A sequencer according to the present invention comprises: a display having multiple data input fields for entry of information items and having a capability for distinguishing or emphasizing which of the data input fields is prepared to accept input; designating circuitry for selecting an operation mode; and a control for, when a specific operation mode is selected by the designating circuitry, facilitating the entry of information items by distinguishing or emphasizing one of the data input fields where information will most probably be entered in the specific operation mode.

Abstract: An electronic musical instrument having a musical tone parameter display function includes a musical tone information designation device for designating a musical tone pitch or other parameter of a musical tone to be edit, a memory storing a basic formant display pattern shape for generating a musical tone wave, and a pattern shape change device for changing the basic formant display pattern shape according to the designated musical tone information. The changed formant pattern is displayed on a display graphically to allow a player to easily edit a tone color.

Abstract: An information storage medium such as a CD-ROM has a storage area divided into a plurality of sections, for storing digital audio information and for storing picture information and character information, which are stored independently of each other. The digital audio information includes accompaniment information which represents musical accompaniments relative to songs, and the character information includes information which represents words of the songs to be reproduced in time with the musical accompaniments, in the form of characters, figures, colors, or a combination thereof. An information reproducing apparatus for playing back the information storage medium controls the speed at which the character information is to be output, the shape of characters and figures representing the character information, the colors thereof, or a combination thereof.

Abstract: An apparatus for generating sound includes a user input and a graphical programming engine which the user manipulates to generate and connect graphic symbols into a graphical model representative of a sound generating program on a display. A translation mechanism coupled with the graphical programming engine translates the graphical model into a sound generating program, and a digital signal processor executes the sound generating program in response to user input to generate output data in real time representative of sound. This output data may then be coupled to a converter, amplifier and speaker to produce sounds in real time in response to modifications of the graphical model or in response to real time input data from a MIDI standard instrument.

Abstract: A music score display device has a storage device for storing music score data, a display device for displaying the music score data for each specified section, and a comparator for comparing the musical playing data supplied from a player with the music score data. The music score display device further has a retrieval device for retrieving a playing position according to the compared result of the comparator, and a display controller for controlling display section of the display device based on the retrieval result of the retrieval device.

Abstract: An electronic musical instrument, which carries out a plurality of process functions, comprises a plurality of operation elements, function designation device, setting device, reading device, assigning device, and control device. The plurality of operation elements is operated. The function designation device stores function designation data which designates a plurality of functions corresponding to one of a plurality of process functions. The setting device freely connects or disconnects the function designation device with the electronic musical instrument. The reading device reads out the function designation data stored in the function designation device. The assigning device respectively assigns the plurality of functions, designated based on the function designation data, to plurality of operation elements. The control device carries out the functions respectively assigned to the plurality of operation elements when the plurality of operation elements are respectively operated.

Abstract: An electronic musical instrument having a searching function of a tone color is provide with a parameter degree memory and a mouse or the like for designating any desired range of a specified parameter degree. When the searching is executed, the tone color whose parameter's degree is included within the designated range of the specified parameter is found out.

Abstract: The electronic musical instrument has synthesis means operative according to given tone control parameters for effecting a musical tone synthesis to generate a musical tone. Register means is provided for registering first data of a lower class and second data of an upper class in hierarchical data structure so as to constitute the tone control parameters. The first data is effective, at least, to define a timbre of a musical tone to be generated. The second data designates a plurality of the first data, effective to control the musical tone synthesis according to different timbres which are defined by the plurality of the first data. Edit means is provided for revising selectively the registered first data. Display means is provided for selectively indicating the second data which is associated to the first data to be revised in order for management of the hierarchical data structure.

Abstract: A system and method for control of so-called KARAOKE equipment whereby the musical key of the pre-recorded accompaniment music may be altered automatically to substantially coincide with the analyzed or given vocal range of the singer, for example, soprano, tenor, mezzo-soprano, baritone, alto or bass, or with the preferred key to be sung entered by the singer, for example, E key, so as to eliminate the trial-and-error manual key adjustments during singing.

Abstract: An apparatus to assist the musical instruction of a student including one or more tone sources (e.g., flute, human voice, violin) playing monophonically as inputs, means to quantify aural parameters of pitch, amplitude, duration, and timbre of inputs, means to visually store and represent temporal history of said, means to store and playback audio signal of inputs, and means to arrive at and display musical related pitches. A waveform analyzer is used to control a tunable low-pass filter in the pitch tracker and preform spectral estimation of timbre. Pre-recorded music instruction and a karaoke player are used as examples of reference tone sources. Visual representation of aural parameters can provided as video output.

Abstract: An auto-play apparatus for an electronic musical instrument generates auto-play tones or auto-accompaniment tones such as melody, chord, bass, and drum tones on the basis of preprogrammed auto-play data. The apparatus includes a detector for detecting note data in the auto-play data. Every time a tone corresponding to note data in the auto-play data is generated, a pre-programmed display sequence of animation patterns advances. Animation display pattern data representing motions of a person or animal are sequentially sent to a display on the basis of the animation display sequence. Every time a tone corresponding to note data in the auto-play data is generated, the display patterns change motion by motion, thus obtaining an animation display.

Abstract: In order to simplify the input operations for the simulation of the non-electronic musical instrument such as the wind instrument, input values are visually displayed on a display screen of a display unit. Herein, by operating an input device such as a keyboard, a mouse, a light pen and the like, a tube shape, position and size of a tone hole of the wind instrument is visually drawn on the display screen in accordance with the predetermined plotting programs. In order to simplify calculations required for the computer simulation, the tube shape of the wind instrument, such as a conical shape, is divided into plural portions, each of which is simulated by another simple shape, such as a cylindrical shape. Then, parameters defining the simulated shape of each portion of the tube shape are generated in accordance with the predetermined algorithm, and these parameters are memorized in a memory.

Abstract: A musical sound waveform generator includes a carrier signal generating unit, a modulation signal generating unit, a mixing controlling unit and a waveform outputting unit. The characteristics of the carrier signal from the carrier signal generating unit are determined such that the musical sound waveform generated by the waveform outputting unit is a sine wave or a cosine wave with a single frequency, where the mixing ratio of the modulation signal is made O by the mixing controlling unit. Therefore, the mixing controlling unit presets the mixing ratio of the modulation signal to be O, making it possible to generate a musical sound waveform which is only a sine wave or a cosine wave of a single frequency. During the performance, the mixing ratio can, for example, be determined at a high value immediately after the start of sound generation and thereafter reduced to near O with time.