I am with Salvelinus on this question of music appropriate to trout fishing. "The Trout" by Schubert would be a good choice.
I am as fond of Rock n Roll as the next guy, but there is a long-standing aesthetic to fly fishing for trout which is being lost in the modern social ethos of gonzo, confrontational, head-banging everything.
Izaak Walton gave us the first and last words on this issue in 1653 when he summed up his discourse on fishing by recommending that we "Study to be quiet," a line he borrowed from 1 Thessalonians.