I don't know if it is related, as I've never read on the subject, but when I was in highschool, before falling asleep, I often spend over an hour with soft musi

I don't know if it is related, as I've never read on the subject, but when I was in highschool, before falling asleep, I often spend over an hour with soft music playing at a very low level while focusing on any body parts. For instance, on my knees, or arms, feet, etc. I'd feel them loose, like they were floating, not even touching anything. I'd reach a point where I couldn't move even though I'd try, and it actually felt great. I sometimes miss taking the time to reach that point before falling asleep as I'm usually too tired to stay awake longer than five minutes once in bed (even with a book open). I'm not sure if that counts as meditation, but I'm sure willing to read more on the subject, as I want to fell that calmness again.