Eli5: Music theory: Why do we have certain time signatures?

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If signature does not denote tempo, why do we need signatures like 2/4 or 6/8? Why can’t the music just be written in 4/4 or 3/4?

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Anonymous 0 Comments

Signature doesn’t denote tempo, but it does denote what beats are emphasized.

You typically emphasize the first beat of a measure. If you’re just singing and playing guitar, you typically change chords on the first beat of a measure. So if it’s 4/4, you play one chord four times, then you change to a different chord. In 3/4 you’d change after 3.

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