| 摘要 |
PROBLEM TO BE SOLVED: To make a demonstration rich in interest with this electronic keyboard musical instrument with performance guide. SOLUTION: This electronic keyboard musical instrument with performance guide controls to turn on a sound name/keyboard guide lamp 3 according to automatic performance data when a keyboard 2 and an operation panel 7 are not operated for a certain period of time when the demonstration mode is on. Further, this instrument controls to generate sound effect sound. This sound effect sound is made to be different sound effect sound every predetermined time after the demonstration has started. Moreover, when an input from the keyboard 2 or the operation panel is detected, the demonstration is stopped immediately. |
