Mark Foley explores the relationship between math, meter, and music.
Music is almost always arranged in a repeating pattern of beats; the pattern, or “meter,” usually corresponds with a rhythm that is easy to dance to, so the meter of a song is usually a simple group of 2, 3, or 4 beats. There is, however, a history of composers making things more complicated. “Money,” from Pink Floyd’s Dark Side of the Moon, has a strange, lop-sided groove because it is in an undanceable seven-beat meter.
Example 1: “Money”