The drums. Typically:
1. 4/4= HH or Ride on 1/8 notes, Kick on 1-3 & snare on 2-4
2. 2/4= HH or ride on 1/8 notes, kick on 1-2 & snare on the "&" after the 1-2.
Musically a lot of tunes that are 2/4 could be notated as 4/4. As I said though it would be really fast drumming and not sound right thus the drummer cuts his time. Make sense. hard to explain.


John
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