Physics and Astronomy Labs/Sound speed and the relativity of rhythm

Beethoven's seventh symphony
Visit YouTube/ SMALIN to hear and see the first movement of Beethoven's 7th symphony: The lively Vivace takes dotted quarter note at 104 beats per minute ( = 104 ) in a Compound Duple Meter. After a string of (often misleading) rhythmic hints, the pattern is establised at minute 4:16 in the youtube video. The theme is:

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