[zeta0134]

I do this sometimes with a single song, but I've found much more success with entire soundtracks from video games, especially Nintendo games, though mostly for nostalgia reasons. The different songs add just enough variety that I don't get bored, but usually the entire soundtrack has a consistent volume, style, and often mood. Plus these songs very rarely have any distracting vocals.

I'm musical in general, having grown up doing various band activities, so there's always a song playing upstairs. Having something external to listen to simply allows me to switch tracks.