Sorry, for some reason I didn't get notified of the previous reply.
Anyway, amps are either bottlehead upgraded s.e.x amp or bottlehead Crack withlots of upgrades -- caps, CCSs, wire, tubes, etc. Music is all over the place but Jazz, classical, acoustic and world making up the bulk of it. Classical ranges from small ensemble early through baroque, some large scale orchestral to modern and post-modern.
I like an even, detailed, but non-fatiguing, and somewhat warmish sound (which is something I can always tailor with tube rolling and cabling) and I prefer an articulate bass to super deep, and the mids and highs have to be really clean. comfortable fit and soundstaging are also fairly important. Source will be a computer-fed Tranquility or HRT MusicStreamer II Plus.
Again. sorry for not replying sooner but I never got the notification of the first reply to the OP.
Thanks,
Jim