of what happens right now to be my favorite work by Beethoven (his quartet for strings in C-sharp minor, written a year before he died), and one of my favorite pieces. (Almost my favorite piece...)
I first heard it in my father's record collection of the complete Beethoven quartets performed by the Fine Arts Quartet, I think, but I first
heard it - listened?... was taken?... when I was in a record store and they broadcast Leonard Bernstein's recording of a full-string-orchestra arrangement of the piece over their speakers...
If your system can play MIDIs, I made one of the first movement here -
http://www.lightlink.com/schissel/midis/lb131_i.mid