I have not used SuperCollider in a long time, but there used to be a nice Clojure front-end (with some Emacs integration) and it looks like that still exists even if most recent commit was 8 months ago:
https://github.com/overtone/overtone
Worth mentioning the "supercollider-vscode" extension - makes Supercollider dev experience much smoother than it was a decade or so ago.