system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why is the beat of electronic music always dictating the change of melody with a multiple of 8 beats?
gpt
Dancing. 

Western music evolved alongside western dance and the beat pattern is just what we are culturally inclined to dance to. 

Walts music changes in 3s because it's written in 3/4 time. Balkan dances are written in odd times because they dance in rhythms that go "long long short" in terms of pulse. 

Music and rhythm are cultural, whatever style of dancing is popular will always dictate the rhythmic pulses.