| 摘要 |
<p>A Music Wheel user interface or apparatus having a substantially flat surface area and being formed by a plurality of wheels stacked on top of each other. Each wheel can independently move in clockwise and anticlockwise directions. The face of each wheel displays relevant and fundamental information for musical instructions. Certain parts of the faces of certain wheels are cut out, or have windows, allowing the inscriptions of pitches or key tonalities letter, number, and symbol notes on the faces of the wheels at the bottom to be seen. The sizes of the wheels are ascending from top to bottom to allow the inscriptions on the rim of the wheels at the bottom to be seen. During operation, at least one wheel is stationary and three are movable. All moving parts can move independently of each other.</p> |
