Multi-mic audio files for ICA demo?

I’m teaching undergrads about independent component analysis and often use the analogy of recording an orchestra with multiple mics suspended from above. I talk through how the mixed signals can be decomposed into individual sources (flute, oboe, tympani), and the signal that you don’t want, the guy coughing in the audience. Remove the cough component, remix, and you have noise-free music.

I would like to find a multi-track recording like this where I can use ICA to decompose, remove a component, then remix the signals. It would ideally be from microphones so that the different sound sources bleed into surrounding mics.

So far my searches haven’t found anything useful. I could mix up some sine waves, but would rather have a real world, relatable example.

Anyone know of such a thing?