CLM was actually made by the author of s7, who is one of the godfather's of computer music. You could check out Common Music 3 which was a big inspiration for S4M and also runs s7, but it is unfortunately non longer actively developed as the author now has to teach using Python.

Other Lisp music related things include Incudine, Slippery Chicken, the Snd editor, MozLib (CL stuff for Max).

It is an integrated environment, but https://www.opusmodus.com is worth checking out if you are into algorithmic compositions and Lisp.

There have been several Scheme-like live coding systems that have become popular and faded away over the years. https://tidalcycles.org and its web-based friend https://strudel.cc are Haskell-like and were also getting some good attention a while go.

Once opening the door to Strudel.cc, there's no coming back. Its approach to patterns and sequencing is so ingenious, I can see a whole generation embracing it as modern way, modern notation for music, which is not played physically, but performed digitally. Further on - strudel is so easily plug-able that it easily integrates with DAWs and even a simple Mainstage + VSTs (or VCV rack) is more than enough to go totally berserk with both sound design or/and pattern sequencing.