WolframTones works by taking simple programs from Wolfram’s computational universe, and using music theory and Mathematica algorithms to render them as music
In other words, a random / generative music composition tool / toy!
Here is one generative piece it created in Hip-Hop style (sounds very much like a MIDI file, which either gives it charm or not, depending on your own point of view):
http://tones.wolfram.com/id/G6CLfIXDmKpmGdENi6pwVkHdwpGIrWapeqCkXkm5pTYlDNG&abmnk=2
Play around with this yourself, and see what it randomly generates:
