| 摘要 |
PROBLEM TO BE SOLVED: To maintain the excellent artistry and beautiful melody of original work and to guide even a beginner inexperienced in musical performance so as to easily play an original work of high difficulty. SOLUTION: In the case of transposing the pitch data group of the original work stored in a music data ROM 5 by a semitone unit and preparing a pitch data group for every amount of transposition, a CPU 1 performs arraying in the ascending order of the number of pitches corresponding to black keys in the pitch data group for every amount of transposition, prepares black key number data for the respective amount of transposition and stores them into a RAM 4. When a playing guide is started by the operation of a switch part 6, the pitch data of the original work read from the music data ROM 5 are transposed for the amount of transition stored in the RAM 4 and outputted to perform the playing guide. |
