https://offeo.com/free/youtube-to-mp4/
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Strong recommendation to use this with some orchestrated video game music (I use Zelda, HoMM2 and 3, Portal, etc.) from YouTube. I have 20 or so smallish mp4 files and just let it roll in shuffle.
I found links in your comment that were not hyperlinked:
I did the honors for you.
^delete ^| ^information ^| ^<3