In the 1980s an ethnomusicologist and jazz drummer named Charles Keil claimed that swing depends on very small rhythmic variations — called microtiming variations — among musicians.

20 世纪 80 年代，一位名叫查尔斯·凯尔的民族音乐学家和爵士鼓手声称，摇摆取决于音乐家非常微小的节奏变化（微时间变化）。