A blast from my past... Found this while going through some of my old stuff in my parents' basement. Yes, I grew up in the 90's... I thought maybe this would be relaxing to some of you. This is actually my 2nd take of this video as my memory card decided to corrupt itself and I lost the original.
To listen while using other apps, switch the player to Picture-in-Picture (PiP) during playback — it keeps playing in a small floating window (the screen stays on).
To listen with the screen fully off, in-browser playback stops by YouTube's design. Open the video in the YouTube app to keep listening where background playback is supported (e.g. with YouTube Premium).
Open in YouTube app