| 摘要 |
The harmonica or accordion has a discant part with a discant mechanism and a base part with a bass mechanism. The discant mechanism and/or bass mechanism are designed in order to ensure direct and/or uniform speeches of all possible tones. The discant mechanism has two rows of key levers (24), which are rotatably supported at parallel axis. The bass part has a flap cover (25), which is impressed using a push rod for opening air channels in an interior of an instrument. |
