Ok, I think I understand now. When a musician sees a series of eighth notes, how they are played depends on the context even though they appear the same. I look first for written instructions, for example "swing" or "straight eights". And you have to know that if you are playing a samba, it's straight just because that's the style. Swing eighth notes are played about 2/3 1/3 timing, but they aren't notated that way.

Is that what you are looking for?


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