| 摘要 |
PROBLEM TO BE SOLVED: To provide a play supporting device capable of giving indications of a key to be pressed and a finger to press the key which are intuitively recognizable to a player. SOLUTION: This play supporting device is provided with plural LED parts 3 arranged in the positions corresponding to each key 1 of a keyboard instrument, comprising three pieces of LEDs 5a, 5b, and 5c for each key. And, one or two pieces of the LEDs belonging to any LED part 3 of the plural LED parts 3 corresponding to each note in a musical piece are arranged to light up, and the LED part 3 including the lit LEDs indicate a key corresponding to the note a combination of the lit LEDs of the three pieces of LEDs 5a, 5b, and 5c belonging to the LED parts 3 indicates a finger to press the key. |
