Though this is actually a very old and commonly used method for transferring files back in the 90s (we did this via tty telephone modems), it is kind-of pleasing to see this idea popping up again, and triggered some thoughts about it’s usefulness in cooperative livecoding situations.  

Yes, it would be really fun not have to setup wireless LAN that invisibly and–for the audience–almost magically transfer information from one laptop to another, and, instead, having some sort of musical/non-aweful sound that transmit additional information from one laptop to another.

I wonder if anyone ever thought of this in the SuperCollider / LiveCoding community, but I think it’s worth!