I play both the keys and the guitar, but I've never really classified myself as a "musician," as my interest in playing is basically to play well enough to facilitate writing and composing. I've never had the interest or patience to achieve the skill level, or technical level, at playing either instrument that I would define as proficient. If anything, I "play" audio, midi, production, synth, sampler, and effect software far more proficiently than any "actual" instrument. And not in the Garage Band, Loopy-whatever, Instant DJ-douche software way - the actual step-by-step from scratch with an actual understanding of music theory, recording, production, and sound synthesis.