| 摘要 |
A musical drum that includes a drumhead on each end that is secured to the shell by its own counterhoop. Formed as an integral part and around the perimeter section of each of the counterhoops is a series of slotted openings defined on each side by T-shaped arm members projecting radially from the hoop. A series of cord strands are threaded through each of these openings and drawn vertically across the shell in parallel relation to one another until the drum shell is encircled. By squeezing or depressing one or more of these strands together while striking the drumhead, the drummer is able to manipulate the tones and pitches of the drum sound to enable the drum to sound as if it is "speaking.
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