For about two weeks I had this beautiful haunting melody stuck in my head. It would just turn on at certain times in the day and I'd find myself humming it. I have around 3500 CDs, mostly jazz but boatloads of classical stuff too. For days I rifled through bins of CDs (which is something I love doing) looking for the source. No dice.
Finally, a breakthrough: One day the song was playing in my head and I noticed the timbre of the instrument was a clarinet. And it was kind of raspy, which was weird, because the melody seemed more classical and classical clarinetists have super clean tone. I immediately knew to start looking for Don Byron albums, because he probably makes up 90% of my clarinet jazz albums. Sure enough, after a couple hours I found it. The last tune off the "Tuskeegee Experiments" album is a Schumann (!) piece called Auf einer Burg: