Mine is an eclectic (some would say "schizophrenic") mix:
Popular Music: Jim Croce, James Taylor, and Jimmy Buffet ("Pencil-Thin Moustache" has been an ear worm for days now!)
Country: Garth Brooks, George Strait, and Gary P. Nunn (his "London Homesick Blues" has been the theme song for "Austin City Limits" for 20 years now!)
Instrumentals: Vince Guaraldi (light jazz--he wrote much of the music for the "Peanuts" specials and influenced the rest), Aaron Copeland, and a Big Band anthology
Jazz: A 3 CD box set of Louis Armstrong
Alternative: Roxy Music and Squeeze
Contemporary Christian: Stephen Curtis Chapman, Newsboys, and the soundtrack from "The Rock and the Rabbi" (a mimimalist but very powerful telling of the Gospel from the perspective of Peter using only 4 voices, acoustic instruments, and no costumes. It started in a friend's church in Safety Harbor FL and went to Broadway before settling in a permanent home in Orlando.)
So, (channeling voice of "Tolga the Hostile") what's in your mp3?