Despite the fact that a long time ago I learned never to assume anything, is it safe to assume that different versions of the same song, by the same artist, should have a BPM that's somewhat close. (Obviously ignoring ballad versions of rock tunes.) I've got twenty versions of the Rolling Stones doing Satisfaction. Some live recordings, some studio versions. The BPM runs from a low of 134 to a high of 150. I would assume that's fine. But I have one version that's coming in at 75. And it's certainly not a slow version of the song.
Any thoughts?