Choosing Pilates class music means finding tunes around 60-90 BPM for mat work...
https://gbubemaster.gumroad.com/p/how-do-i-test-music-vs-no-music-with-my-clients
Choosing Pilates class music means finding tunes around 60-90 BPM for mat work or 80-100 BPM for flowing sequences—steady and smooth. Keep the volume low enough so your cues and everyone’s breath come through clearly