Abstract: The present disclosure relates to a virtual drum kit device. The virtual drum kit device includes a motion capture device and a drum sound processing device separated from each other; where, the motion capture device includes at least two drumsticks, the drumstick including a first cover body, as well as a first battery, a first control printed circuit board assembly (PCBA) board and a vibration motor which are arranged in the first cover body, the first control PCBA board being connected to the battery and the vibration motor separately, and being capable of transmitting an RF signal to the drum sound processing device according to a motion instruction captured by the drumstick, the drum sound processing device includes a second cover body, as well as a second battery and a second control PCBA board which are arranged in the second cover body.

Abstract: Techniques are described for real-time converting audio into digital musical notation. In an implementation, the process receives a sequence of samples of an audio stream in real time. Based on the sequence of samples, the process generates a window set of note event probability values. The process excludes from the window set of event probability values a leading set of event probability values and a trailing set of event probability values, thereby generating a filtered window set of event probability values. Based on the filtered window set of event probability values, the process determines a sequence set of note-on and note-off events.

Abstract: A music composition system for composing music segments comprises: a computer interface comprising at least one external input for receiving from an external device a request for a musical composition; a controller configured to determine based on a request received at the external input a plurality of musical parts for the musical composition; and a composition engine configured to generate, for each of the determined musical parts, at least one musical segment in digital musical notation format, the musical segments configured to cooperate musically when performed simultaneously. The computer interface comprises at least one external output configured to output a response to the request, the request comprising or indicating each of the musical segments in digital musical notation format for rendering into audio data at the external device.

Abstract: Indicating what should be played in a piece of music with a music document, including: displaying a part of the music document when a user plays the piece; receiving a real-time audio signal of the playing; automatically determining a playing position within the piece of music based on the real-time audio signal; automatically scrolling the music document on a display depending on the playing position; estimating at least the following from the real-time audio signal: activity; tonality; and tempo used in automatically determining the playing position determined from playing speed of the user. The estimating of the activity includes detecting whether the user is producing any sounding notes. The estimating of the tonality is based on an array of chord models that represent different chords that appear in the music document and allow calculating the probability that the corresponding chord is being played in various real-time audio signal segments.

Abstract: An automated music composition and generation system including a system user interface for enabling system users to review and select one or more musical experience descriptors, as well as time and/or space parameters; and an automated music composition and generation engine, operably connected to the system user interface, for receiving, storing and processing musical experience descriptors and time and/or space parameters selected by the system user, so as to automatically compose and generate one or more digital pieces of music in response to the musical experience descriptors and time and/or space parameters selected by the system user. The automated music composition and generation engine includes: a digital piece creation subsystem for creating and delivering the digital piece of music to the system user interface; and a digital audio sample producing subsystem supported by virtual musical instrument libraries.

Abstract: This disclosure relates generally to electronic musical instruments, systems, and methods. More particularly, this disclosure relates to electronic percussion instruments such as tom toms, snare drums, bass drums, cymbals, and hi-hats, and assemblies of instruments (e.g., percussion instruments), such as drum sets. Some cymbals and hi-hats according to the present disclosure can be used in conjunction with a traditional acoustic metal cymbal. This disclosure also relates generally to devices and methods for operating electronic musical instrument systems including one or more musical instruments and a hub, and particularly to systems including wireless communication between the instrument(s) and hub. Various devices and methods are described for operating the system, including various operational modes of the devices, and including methods and techniques for connecting the devices, improving communication speed and robustness, and conserving power.

Abstract: A system and method for controlling various types of messages, including a MIDI signal of a MIDI instrument, bi-directionally with a center detent and a resting plate for a user's foot is disclosed. A foot pedal system has a base, a pedal, a sensing mechanism, a foot rest bar, a MIDI pedal controller, a MIDI-In port for receiving the first MIDI signal from the MIDI instrument, and a MIDI-Out port for outputting the second MIDI signal. The pedal has a center detent and a spring mechanism for returning the pedal to a default position.

Abstract: Systems, devices, and methods for encoding the harmonic structure of a musical composition in a digital data structure are described. Tonal and rhythmic commonalities are identified across the musical bars that make up a musical composition. Individual bars of the musical composition are each analyzed to characterize their respective harmonic fingerprints in various forms, and the respective harmonic fingerprints are compared to sort the musical bars into harmonic equivalence categories. Isomorphic mappings between hierarchical data structures that encode the musical composition based on musicality and harmony, respectively, are also described. The systems, devices, and methods for encoding the harmonic structure of a musical composition in a digital data structure have broad applicability in computer-based composition and variation of music.

Abstract: Systems, devices, and methods for encoding digital representations of musical compositions are described. Various components of a musical composition that are defined in modern music theory, such as notes and bars, are encoded as respective hierarchically-dependent data objects in a data file. The hierarchically-dependent data objects encode the musical composition in a tree-like data structure with modular nodes and adjustable relationships between nodes. Note start times and beat start times are encoded independently of one another and characterized by a timing relationship that captures the expressiveness imbued when notes and beats are not precisely synchronized. Musical variations that preserve the timing relationship between the notes and beats of the original composition are also generated and encoded.

Abstract: Systems, devices, media, and methods are described for presenting a tutorial in augmented reality on the display of a smart eyewear device. The system includes a marker registration utility for setting a marker on a musical instrument, a localization utility, a virtual object rendering utility for presenting virtual tutorial objects on the display near the instrument, and a hand tracking utility for tracking the performer's finger locations in real time. The virtual tutorial objects, in one example, includes graphical elements presented on a virtual scroll that appears to move toward the instrument at a speed correlated with the song tempo. The hand tracking utility calculates a set of expected fingertip coordinates based on a detected hand shape.

Abstract: According to an embodiment, there is provided a system and method for automatic AI-based song construction based on ideas of a user. It provides and benefits from a combination of expert knowledge resident in an expert engine which contains rules for a musically correct song generation and machine learning in an AI-based audio loop selection engine for the selection of fitting audio loops from a database of audio loops. Additionally, in some embodiments there is provided a method of energy-based song construction where the tracks of a multi-track work are balanced depending on the desired output volume level of the final project.

Abstract: A drum head and an attachment method of a cushion are provided. A drum head includes: a diaphragm; an outer cushion that is joined to the diaphragm and has a predetermined cushioning property; an inner cushion that is interposed between the outer cushion and the diaphragm and has a predetermined cushioning property; and at least one joint that joins the outer cushion to the diaphragm in a state in which the inner cushion is pressed against the diaphragm by the outer cushion.

Abstract: A generative composition system reduces existing musical artefacts to constituent elements termed “Form Atoms”. To provide myriad new composition, a set of heuristics ensure that musical textures between concatenated musical sections follow a supplied and defined briefing narrative for the new composition whilst contiguous concatenated Form Atoms are also automatically selected to see that similarities in respective and identified attributes of musical textures for those musical sections are maintained to support maintenance of musical form. Independent aspects of the disclosure further ensure that, within the composition work, such as a media product or a real-time audio stream, chord spacing determination and control practiced to maintain musical sense in the new composition. Further, a structuring of primitive heuristics operates to maintain pitch and permit key transformation.

Abstract: A method and system for dynamic music creation is disclosed. An emotion is assigned to one or more musical motifs and a game vector is associated with the emotion. The one or more musical motifs are mapped to the game vector based on the emotion. A musical composition is generated based on the game vector and desired emotions.

Abstract: According to an embodiment, there is provided a system and method for automatic AI-based song construction based on ideas of a user. It provides and benefits from a combination of expert knowledge resident in an expert engine which contains rules for a musically correct song generation and machine learning in an AI-based audio loop selection engine for the selection of fitting audio loops from a database of audio loops.

Abstract: An information processing method includes generating performance data that represent a performance of a musical piece that reflects a change caused by a factor that alters the performance of the musical piece, by inputting musical score data, which represent a musical score of the musical piece, and variability data, which represent the factor, into a trained model.

Abstract: The disclosure relates to an electric machine having a rotor including a set of permanent magnets and a stator including a stator strip made of a soft ferromagnetic material, the strip supporting a coil body having a single discontinuity, the coil body supporting a plurality of wire coils so as to form a polyphase coil stator assembly of the toroidal type, wherein the strip has a single discontinuity and has at least one partial cut at regular intervals between two consecutive wire coils.

Abstract: A sound signal generation method for a keyboard including a pedal and a key, the method according to an embodiment of the present disclosure comprises generating a first sound signal and a second sound signal different from the first sound signal based on first operation data corresponding to an operation of the key, and adjusting a relationship between the first sound signal and the second sound signal to sound at respective timings according to a physical quantity of a key pressing operation of the key to control a decay rate of the first sound signal to be different from a decay rate of the second sound signal based on a key release operation of the key.

Abstract: Systems, devices, media, and methods are described for presenting a tutorial in augmented reality on the display of a smart eyewear device. The system includes a marker registration utility for setting a marker on a musical instrument, a localization utility, a virtual object rendering utility for presenting virtual tutorial objects on the display near the instrument, and a hand tracking utility for tracking the performer's finger locations in real time. The virtual tutorial objects, in one example, includes graphical elements presented on a virtual scroll that appears to move toward the instrument at a speed correlated with the song tempo. The hand tracking utility calculates a set of expected fingertip coordinates based on a detected hand shape.

Abstract: A stringed instrument, such as a semi-acoustic electric guitar, can employ a resonance system that consists of a body having at least one internal cavity accessed by a soundhole continuously extending from a top cover. The soundhole may have a continuously curvilinear transition from the top cover and a length corresponding with an altered resonance frequency of the instrument body.