| 摘要 |
One or more deadening elements are in contact with the underside of the drum head and are connected to a foot operated mechanism which moves the deadener or deadeners across the drum head thus varying the effective resonating area of the head so that the drum can be tuned while playing. As an example, the drum tuning can be changed from a bass drum to a concert tom. The preferred embodiment includes a pair of opposed, curved deadeners which are moved towards and away from one another in concentric relationship with the drum head.
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