@cymatic_art is a small French-language account — 150 followers, 92 posts — belonging to Marina Hugues. The bio describes her as a "Photographe Cymatic Art" working on "visualisation des vibrations acoustiques", and also as a "Musicothérapeute" and trainer offering individual sessions and a personal frequency visual.
It is a useful example of how often the aesthetic and the therapeutic sit in the same practice in this field. The two need separating. Music therapy is a recognised allied-health discipline with a genuine evidence base for outcomes such as anxiety and mood in specific settings. A cymatic image made from a recording of your voice is an artwork derived from that recording — a pretty one, but not a measurement of you and not a diagnostic.
Worth following for the photography if you read French. Judge the sessions separately.