Sonic Pi is missing imo. (Some have mentioned Strudel, it’s a similar live-coding music platform). Admittedly Ruby-based, but it seems some of the other ones on the list are libraries/forms of other langs too.
Sonic Pi is by far the most accessible way to play with these tools. It's designed to teach music and coding to kids and has great starter tutorials, and a ton of depth as well. Check it out!