My musical instrument of choice is currently an [link|http://en.wikipedia.org/wiki/Ensoniq_TS_10|Ensoniq TS-10]. The really interesting thing about Ensoniq synthesizors is that it didn't take long using them to realize that they were really specialist computers, designed for making music.
I've been playing my TS-10 and before that an older Ensoniq synth, an EPS16+, for many years. But it's only in the last 18 months that I've begun to understand that part of the skill I bring to music-making is understanding how my synth is programmed, and knowing when and why to change sound patches.
Sure, it's a digital instrument, but therein lies it's flexibility. I've persisted with elderly Ensoniq hardware because the hardware engineers and, significantly, the programmers of Ensoniq were also lovers of music and worked very hard at creating specialist computers that can sound absolutely genuine. And they do.
I think you're trying to imbue the word 'computer' with some of the meanings of 'artificial intelligence'. That's a mistake. My synth is a computer, but I still have to control it to make the music. It can't perform new music on it's own; at best it can playback something previously recorded.
Wade.