| 摘要 |
PROBLEM TO BE SOLVED: To sufficiently grasp musical performance indications, to reduce the fatigue of the eyes, and to enable practice in musical performance while a playing miss is fed back in real time when the practice in musical performance is carried out over a look at a display screen where images of musical performance indications of a performance of music change with time. SOLUTION: A CPU 11 displays an image showing playing indication data to be played after the start time of the musical performance and playing indication data to be played before the start time of the musical performance divisionally at a border position indicating the playing start time according to playing indication data indicating the musical performance of music, and moves the two images and their border position in the future direction on the screen as time elapses. |
