Generative music already is a tool / method in some artists' portfolio (particularly in ambient or experimental circles). However, it doesn't tend to be the onl

Generative music already is a tool / method in some artists' portfolio (particularly in ambient or experimental circles). However, it doesn't tend to be the only approach. AI could perhaps work soon for certain formulaic music (like say bubblegum pop) as well as some forms of synth music (I easily can see generative minimal techno for instance). I will say that people don't tend to like overly formulaic music though; they tend to like the twists, turns, and "personality" that people can bring to art. Even in pop, formulaic pieces are quickly forgotten. But it's probably possible to write an algorithm now that does this sort of stuff really well. Beyond pop formula, I think AI advocates sometimes underestimate the difficulty. There are no real "rules" in music. The music of the world is very diverse, the "rules" even in pop / folk vary from culture to culture. Many styles of music are way beyond AI at this point IMHO. They are either much more technically complex (Western classical) or rely on improvisational skills that I would think would be difficult to parametize (jazz, Indian classical) Heck, even with something like say blues music, which pretty much uses the same template for most songs (well, a similar rhythm and similar chord changes at least), you've still got the soloists and the singing. Vocaloid ain't got nothing on Muddy Waters or BB King etc. :)