String Cheese Incident
you can get a whole lot of free music from archive.org/audio/
http://www.archive.org/audio/etreelisting-browse.php?collection=etree&PHPSESSID=e0fd208c4ea6166b6b3860b4b142397f
String cheese incident? Bill Nershi, right? I saw them on Austin City Limits a while back.
I'd probably load the MP3 player with a wide mix- My wife & I have divergent tastes. Everything from J-Lo, Matchbox 20 and Sarah McLachlan (HERS) to Guy Clark, Lyle Lovett, Jimmy Bufett, and Alison Kraus & Union Station. (MINE)
We did a 12 hour drive across NJ and all of PA last year and didn't hear the same track twice.
LC