Fast tapping on 3 of my ocarinas. Some randomness as well. While I can record 60 fps the software I'm currently using will only do 30. Hopefully have 60 fps videos in the future.
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