I do my active exercise in silence. I do most of my meditation in silence. I think I'll try playing the meditation music with I won't wake the family.
I just mentioned this because I'm pretty sure that when I'm doing the Small Universe at my own pace I don't do it's not evenly. So I suspect there is a natural rythmn, and it may be different for each person. There may be common trends like the long heart and kidney position. You may also linger where you need the work the most.
Just some thoughts from a beginner.
Sending love,
Iam2 
P.S. I don't finish with the tape when I use it.
