A sound modification system for a musical drum comprising a drumshell, a drumhead with an inner surface and a playing surface, and one or more mounting members adapted to be mounted to the drumhead. Each mounting member includes a first coupling member, which is fixed to the drumhead and projects outwardly from the playing surface, and a second coupling member matable to said first coupling member. Also provided is a sound altering element, which is adapted to removably engage the playing surface of the drumhead and has means cooperable with the matable first and second coupling members to form a detachable connection between the sound altering element and the drumhead. The preferred embodiment of the present invention includes a sound altering means in a hoop-like or ring configuration having a plurality of openings formed at regular intervals therein and means inserted through each of the openings to snap-fasten the sound altering means to the playing surface of the drumhead.

 
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> Keyboard device for electronic musical keyboard instrument

~ 00490