A guitar instrumental music was played with 4/4 timing and tempo of 86 bpm settings. One pattern consist of 6 notes ( or beats). On audacity, a unit strumming pattern ( = 1 bar) takes roughly 2.78sec. How do I derive the bpm theoretically from this pattern length correctly? Or in other words how do I get a figure close to 86bpm from this unit pattern length of 2.78 (approx) sec?
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1 Answer
It's given that one measure lasts 2.78 seconds.
Since one measure lasts 2.78 seconds, there can be 60/2.78 measures per minute.
It's also given there are four beats per measure. Since there are four beats per measure, the tempo is (60 / 2.78) * 4 bpm.
Therefore, the tempo is approximately 86.33 bpm.