[jerf]

Well, the natural next step for the "genre" is to use something other than just pianos, then use multiple instruments simultaneously, and before you know it you're "just" writing very polyphonic music.

It depends on how pedantic you want to be about the word "genre", and I tend to avoid the word entirely when possible because of the really weird (IMHO) ideations that surround it. But in this case, if we're going to keep it to "piano"-type sounds, which we pretty much have to if we're going to have a "problem" that needs solving anyhow, I think they've pretty much explored the space that's available to them.

And the primary reason for this is that they are not charging into a new, unexplored space... quite the contrary. The piano has been explored for hundreds of years. Rather than opening bold new fields of exploration, this is exploring the last few remnant bits that people couldn't cover earlier due to not having hundreds of fingers.

I understand being open to music ideas, but I also don't believe in entirely turning off my brain. I really don't think there's much "there" there.