NOTE: By "inaudible," I mean that you won't be able to understand what I'm saying. That is deliberate. It's gibberish, so if you hear something, I suppose it's like a Rorschach ink blot test. ***** I found this piece of molded plastic and thought it'd be perfect for a video that someone requested quite a while ago. (Sorry it took me so long to get to it.) It's just me, tracing my fingers along this molded piece of plastic, with just a LITTLE bit of tapping occasionally, and whispering inaudibly.
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