I teach music on the side. When working with students learning to read, sometimes they play the notes in the right place but something is missing. When, for example, playing Bach's "Minuet in G Major" , a beautiful piece, it helps to think of the people of that time in their huge dresses. When dancing, they made small, stately movements. You have to let the piece breathe properly, instead of rushing through the notes. Sometimes a synth doing, say, a flute sound, won't sound right unless the keyboardist breathes like a flute player would. I guess what I'm trying to say is that there's more to playing a part than just the note in the right place, or maybe I'm being too esoteric. Would a punk bass sound right if you play like you're happy instead of angry?