| 摘要 |
An improved drum construction in which sound hindering hardware is removed from the drum shell utilizing a unique tuning system that allows the drum skin to be tuned by rotating a counterhoop to bear pressure on an annular hoop securing the drum skin against a bearing rim. Rotation of the counterhoop drives the annular hoop deeper into an annular channel thereby increasing the tautness of the drum skin across the bearing rim. The bearing rim may be modified with adjustable bearing edges. The drum strainer is also removed from the drum shell and attached to the rim or counterhoop. Tone bridges and tone coats may be added to the drum shell to enhance sound production.
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