rototom

Noun

 * 1) A drum that has no shell and is able to change pitch by rotating its drumhead around a threaded metal ring.
 * 2) * 1987, John Strawn, The Proceedings of the AES 5th International Conference: Music and Digital Technology, Audio Engineering Society, pages 23-24
 * [A] rototom, has the majority of its energy in the lower frequencies.
 * [A] rototom, has the majority of its energy in the lower frequencies.