Abstract: The CPU in a music score display device includes: a source region setting unit that sets a source region based on a desired portion designated in a music score displayed on a screen, the source region of the music score being an object to be enlarged and displayed; a display destination region setting unit that sets a display destination region of the screen, the display destination region corresponding to the source region; and a display control unit that extracts the music score in the source region, and enlarges and displays the extracted music score in the display destination region on the screen.

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: A musical score block copy forming apparatus has a musical keyboard (1) having a full-scale key group and a chromatic-scale key group, and a function keyboard (2) having function keys, and the like. Data input at the keyboards (1, 2) and data necessary for a musical score forming arithmetic operation are stored in a storage unit (7). The input data and the data stored in the storage unit (7) are subjected to arithmetic processing by an arithmetic processing unit (3). The arithmetic processing unit (3) has a layout change function used when a musical score is formed, and can display a musical score on a display (4) on the basis of an arithmetic result. The musical score displayed on the display is output to an output unit (5) for forming a block copy of the musical score.

Abstract: The dynamics of a piano performance are measured by measuring the dynamics of each individual note played. This measurement is accomplished by measuring the "near terminal velocity" of the hammer shank associated with each note, the velocity determining the "loudness" of the note. In order to make this velocity measurement without affecting appreciably the "feel" of the piano, a notched shutter is secured to the hammer shank for the particular hammer associated with each note for cooperation with an optical switch (light source and photo cell). When any one note is played, the corresponding hammer shank will move upwardly to cause the hammer to strike the appropriate piano string and in the upward movement, the top of the shutter will intercept the optical switch to generate an initiating signal. This initiating signal starts a count in an electronic counter.