I was driving home from work this morning (2 am) and caught a piece on the radio- it was a medley of classical pieces (william tell overture, 1812 Overture, Hallelujah, etc). The last note of each preceding piece was the first note of the next song, so there was no gap in between any two songs. There was also a snare track in the background making it all very upbeat. It was on 91.3, a station that doesn't have a last played list, at 2:20 in the morning. Any ideas?