| 摘要 |
<P>PROBLEM TO BE SOLVED: To enable a user to perform an automatic accompaniment without having any playing technique as long as the user can read musical scores. <P>SOLUTION: One to a plurality of pitches determined by chords based upon chord progression information indicating the chord progression of music are displayed on a musical score. The one to the plurality of pitches by the chords displayed on the musical score are composed of one pitch corresponding to the root of each chord and 0 pitch to a plurality of pitches specifying the type of the chord, and the 0 pitch to the plurality of pitches specifying the type of the chord are determined according to one or a plurality of pieces of pitch combination information predetermined to specifying the type of the chord. Thus, the music is displayed on the score in the form of chords that a player is to input for an automatic accompaniment performance while chords are each expanded into one to a plurality of pitches, so the user who can read musical scores can easily understand the chord input for the automatic accompaniment performance and also can easily perform chord input operation even for a chord requiring complicated playing operation. <P>COPYRIGHT: (C)2007,JPO&INPIT |
