Musicophilia

Videos reveal a new neurological theory of musical improvisation and creativity. Featuring Oliver Sacks. Also it seems better if you are not thinking while you practise. "A composer with synesthesia sees specific colors when he hears music in different musical keys: G minor, for instance, is not just “yellow” but “ocher”; D minor is “like flint, graphite”; and F minor is “earthy, ashy".
Probably being in the zone is good for painters as well.