r/Cymatic, styled CymaticTribe, was opened on 1 March 2026 by u/JohnnySteet with a welcome post that sets out the remit: Chladni plates, water resonance experiments, frequency patterns, sound healing and audio-reactive visuals.
It is small and the quality is uneven, but it is alive. Recent posts include a living-room coffee-table rig, plate photographs, square standing-wave patterns filmed in a swimming pool during a magnitude 7.4 earthquake in Colombia, a lab reproduction of the Draupner rogue wave, and beginners asking which speaker to buy. There is also the occasional NFT advert and binaural-beats upload, which the moderators do not seem to remove.
For a studio building rigs, this is the one general forum where a build-log post will get read by people who know what a nodal line is. Expect a couple of dozen readers, not a couple of thousand.