To be very general, anything with the exception of rap, hip-hop, metal, house, dance, electronica.

Most forms of rock, from its rock & roll roots to the indie rock of today (although the former is notably better than the latter). Some (but not enough) blues, quite a lot of country, some bluegrass, some folk, lots of soul...I'm just getting into jazz and the big band era courtesy of Bulker. A bit of ragtime (jazz's predecessor). And I'm listening to a lot more classical music now than I did a year ago.

__________________
Faint as a will o' the wisp
Crazy as a loon
Sad as a gypsy serenading the moon