Way too many
to list, so I'll list genres I listen to. You can fill in the names for yourself.
Bluegrass (the more current artists, not so much to ole timey stuff)
Straight Jazz
Smooth Jazz
Dixieland
Alt/punk
indie (including Emo, Baroque, alternative)
Metal (best with girl singers like Within Temptation & Evanescense)
Glamor Rock - David Bowie, NY Dolls, Lou Reed, Mott the Hoople
New or alt country (Dixie Chicks, Sugarland)
Soul & R&B from 60's-80's (EW&F, Sly, James Brown, Al Green)
And last but not least
Gnarls Barkely.