I'm not completely sure that I'd actually call it a "problem" though. I'm usually completely oblivious to it until I hear something that I can hum along to. Th

I'm not completely sure that I'd actually call it a "problem" though. I'm usually completely oblivious to it until I hear something that I can hum along to. The last two I can think of are my wife's comments about some particular singer's song that's been playing a lot this Christmas season, and about a month ago when I was humming along to some Muse in a pizza parlor.