And their reply to mine found computers "unrestrictive" and that they "find restriction to be essential to playing interesting music"
To be more clear, though, I think I should have used the word "expressive" rather than "restrictive". I find it difficult to be expressive with computer-based music. And this is personal - I'm typing this while listening to a friend play an amazing live show with nothing but a Roland MC-808 beat box.
Given a guitar, I can do a lot with just one note, by modulating the timing and tone of that note. But I'm dependent on the direct physical feedback. The indirectness of computer interfaces dismays me. This isn't to say all computers are bad... certainly, I play with digital effects in my chain. My sound passes through computers and still sounds like me. But hopefully you see the point here.