[wglb]

Don't think this is at a haskel conference, but this looks like fun: https://www.youtube.com/watch?v=G1m0aX9Lpts. Their web site is https://sonic-pi.net/.

An explanation of sonic https://www.youtube.com/watch?v=OLLwG_SN8oo

[diskzero]

Sonic Pi is really neat, especially the work that has been done using Erlang in the playback scheduler.