In January This American Life included a story about a man who became obsessed with a particular piece of on-hold music, which turned out to be a song called Opus No. 1:
For some reason this story — and the music — stuck in my mind strongly enough that I recognized the music months later when I was on hold and heard that music. Today I recognized it again as part of a song off of the new album from How To Dress Well – I wonder if Tom Krell listens to This American Life.