"One of These Days" is the opening track from Pink Floy's 1971 album Meddle. Save for the spoken line "One of these days, I'm going to cut you into little pieces" the song is instrumental and features double-tracked bass guitars played by David Gilmour and Roger Waters. One of the two bass guitars sounds quite muted and dull compared to the other. According to Gilmour, this is because that particular instrument had old strings on it, and the roadie they had sent to get new strings for it preferred to wander off and see his girlfriend instead.