The reason people use C/C++ for audio is because a kind of 'soft realtime' performance is required. The thread producing audio cannot block for an unbounded amo

The reason people use C/C++ for audio is because a kind of 'soft realtime' performance is required. The thread producing audio cannot block for an unbounded amount of time, ever. If you are late to produce an audio buffer, a nasty audible glitch will be the result. This means no file access, no waiting for mutexes, and certainly no garbage-collection pauses. This is why managed languages like Lisps are rarely (if ever) used for the DSP in audio applications. I am an audio programmer who loves all things lispy, so believe me, I wish this weren't the case.