Readers discuss jazz music, the next generation of astronauts and more

In full swing

The swaying feeling in jazz music that compels feet to tap may arise from near-imperceptible delays in musicians’ timing, Nikk Ogasa reported in “Jazz gets its swing from small, subtle delays” (SN: 11/19/22, p. 5).

Reader Oda Lisa, a self-described intermediate saxophonist, has noticed these subtle delays while playing.“I