rototom

plural rototoms

1. A drum that has no shell and is able to change pitch by rotating its drumhead around a threaded metal ring.

   [A] rototom, has the majority of its energy in the lower frequencies.

   1987, John Strawn, The Proceedings of the AES 5th International Conference: Music and Digital Technology, Audio Engineering Society, pages 23-24

   1 more example

   The guy said, 'The rototom's talking! Hear the rototom?' Swear to god, he said the rototom was telling the story. 'Can't put no verse there, the rototom telling the story'.

   2005, Jeff Chang, Can't Stop Won't Stop: A History of the Hip-Hop Generation, St. Martin's Publishing, page 409