| 摘要 |
PROBLEM TO BE SOLVED: To freely set a necessary function at a user's choice by changing a specific function indicating means into one indicating a limited function or another function through the mode switching of a mode switching means. SOLUTION: When the power source is turned ON, all functions are displayed on a liquid crystal display plate 3. With a changeover switch 2a, a change between a professional specification mode and a beginner specification mode can be made. In the professional specification mode, all the functions are usable, so all setting states are displayed on the liquid crystal display plate 3. When a beginner uses the electronic keyboard 1a, an effector function which can adds sound effects to a musical sound in the professional specification mode is limited to only the addition of an effect function for echo and reverberation by changing the professional specification mode to the beginner specification mode with the changeover switch 2a. |
