| 摘要 |
Subject of the invention is in that, with a disk shaped device in teaching music, in accordance with the principle of introducing of four disks (2,3,4 and 5) we obtain, and according to the logic of the sequence of numbers replace the letters, which identify music notes. Three larger disks (3,4, and 5) rotate independently, around a common axis which represents a wholeness with a small disk (2). On a disk (5) there are plates (7) having notes in a staff (both within the staff and representation on the instrument). Numbers on the blocks (6) and letter signs are on a disk (2) and (3). The blocks are set in a disk housing.
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