| 摘要 |
PROBLEM TO BE SOLVED: To grasp and at the same time reflect pieces of information regarding key depressing operation and playing other than the key depressing operation on the playing. SOLUTION: A keyboard 5 with an LCD is characterized by that each key has a liquid crystal display unit which displays a picture on its operation surface. When a guide switch of a switch part 4 is turned on, a CPU 1 sets a playing guide mode in a RAM 3, reads music data out of a ROM 2, extracts information regarding playing from the music data, and reads image data corresponding to the information out of the ROM 2 and sends it out to a VDP(video display processor) 7. The VDP 7 expands the image data as image data of one picture on a VRAM 9 and performs coordinate transformation to display the image on the keyboard 5 with the LCD through an LCD driver 6. |
