@thecymartist showed 1,473 followers and 269 posts when we fetched it — a high post count for a small following, which usually means someone who is making work rather than chasing reach. The bio reads: "My name is Alex, Cymatics Artist, Sound Technician, Composer. I'm interested to all the influences of sound over matter."
We could not read the posts themselves, so we cannot tell you which techniques dominate the feed or how recent the last one is. What the profile establishes is a practitioner who combines the technical and musical sides, which is the combination most cymatics rigs actually need.
We list it as a lead worth your own five minutes rather than a recommendation we can fully stand behind. The account has no website link and no obvious commercial layer, which at least means you are not being sold a course.