Isn't Rhai extremely slow? The website itself says that it's roughly 2x slower than Python3: https://rhai.rs/book/about/benchmarks.html. Apparently, Rhai doesn't even compile to bytecode and instead walks the AST! This doesn't sound like a language I would pick as for DSP...

On the other hand, you can always write your own Rhai interpreter if necessary. And if you restrict the language to a limited set of features, which you need to do anyway to keep it realtime-safe, you could even compile it to native code.

> and it can handle real-time audio blocks, which is really impressive:

Any scripting language can do this as long as you stick to operations that don't cause memory allocations, system calls or other non-realtime-safe operations.

For example, you can use Lua to write process functions for Pd objects: https://agraef.github.io/pd-lua/tutorial/pd-lua-intro.html#s...

The question is rather how much you can do in a given audio callback.

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All that being said, Glicol is very cool!