Would it be possible to add switches to the mGBA core Options menu to switch individual audio channels on and off, at all?
Is that available in standalone mGBA?
Yeah. It has the option to switch the 4 PSG channels and 2 FIFO channels. 
Ok, it should be doable, then. Can you make an issue for it at the libretro fork repo on github? We can try to hook into it and then push it upstream.
Cool beans. I’ve just created the issue (under the name Big the Fat). Thanks for being super quick at responding.
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