When picking Pilates class music, aim for 60-90 BPM for mat work or 80-100 BPM...

https://www.slideserve.com/gierrepjfu/how-do-i-keep-the-studio-sound-consistent-across-instructors

When picking Pilates class music, aim for 60-90 BPM for mat work or 80-100 BPM for flowing sequences. Keep the volume low enough so your cues and clients’ breath remain clear