摘要 |
PURPOSE:To easily adjust various musical sounds by providing the musical sound control roll bar of the electronic musical instrument in front of a keyboard and selecting a control function of the roll bar. CONSTITUTION:The wheel (roll bar) 3 for musical sound control which is a cylindrical rotary body having a rotary shaft is divided into two and provided along a keyboard 2 in front of the keyboard 2 and this roll bar 3 is used to control a musical sound such as timbre, pitch, and loudness according to the keyboard of, for example, a melody part and an accompaniment part. Further, a musical sound control function of the roll bar 3 is selected by pressing a selection button 4 selectively on a operation board 1 to perform desired musical sound control. The function selection button 4 of the roll bar 3 is, for example, buttons on a side 6 and they control solo loudness, orchestra loudness, accompaniment loudness, modulation control, timbre control, and total loudness. Then while the keyboard 2 is operated with the right and left hands, the roll bar 3 is rotated with the palms of the hands to control the musical sound corresponding to respective keyboards according to the function selected with the selection button. Consequently, the musical sound control as to respective function is easily performed. |