I think that part about limiting our options speaks to a lot of people. I've sold a lot of stuff in the past months to be able to buy an A4 & OT and every single person I've been in contact with was lost in this paradox: the more options, the less you actually make music.
It's impressive to realise that every musician, no matter their style, experience or goal fall into this.
I have a start of explanation for why people are more creative with primitive instruments thanks to a BBC documentary about consciousness I watched a few weeks ago:
http://www.youtube.com/watch?v=sNc52LmHgUs*spoiler alert*
In the last experiment, we learn that when asked to take a decision, the unconscious part of our brain actually takes the decision 6 seconds (yes !!!) before the conscious part.
Knowing this, I think that, in order to take what we consider as "good decisions" (aka which are in accordance to our conscioussness, our will), the only thing to do is using our conscious side to "train" our unconscious side... It's basically the principle behind what we call "muscle memory" or, in art, I think that's what we call "inspiration", that magic feeling when creativity comes from "somewhere else"... but that "somewhere else" is actually ourselves !
So no wonder that the more simplistic the instrument, the more limits it has, the easier it is to get our unconscious to know it, the more creative we are... Freedom is in the limits !
It also meets the subject of the very last question: How to feel that religious-like passion when you're an atheist and making electronic music ? (the worst position ever !
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Eno answer to the guy that he should try to play acoustic blues guitar and speaks about what is able to make him feel this, which is singing in a choir.. Both very physical practices.
And this is why I like Elektrons: the machines are quite physical, and as far as I'm concerned, will allow me to use physical instruments (guitar + voice) in a live electronic context ang get the best of both world.