| 摘要 |
PURPOSE:To easily specify various chord progression by reading out special chord progression data in order associatively with reading operation for special rhythm patterns when selecting operation is specified by a selecting means. CONSTITUTION:Rhythm pattern control means 101 and 106 start reading an introduction rhythm pattern and playing an automatic accompaniment when an introduction switch 105 is on, and then enters reading operation for main rhythm patterns after said reading operation. While by an automatic chord progression control means 101-103 and 108, the introduction rhythm pattern begins to be read out, the reading operation for the introduction rhythm pattern is entered and when the data are all read, the reading operation for the main chord progression data is started. Consequently, difficult bass chord progression is performed fully automatically and normal chord progression can be switched by one touch, so that various chord progression can easily be specified. |
