I look forward to someone dumping the ROM so I can load it up on my emulator once, mess around with it for five minutes, go "huh," and forget about it forever afterward but still keep sitting in my emulation folders for completeness' sake along with Austin Powers Pinball, The New Adventures of Mary-Kate and Ashley, and those weird naked Japanese mahjong games.
Nixie tubes were replaced by the multi-segment LED displays for numbers for many of those use cases where the numerals needed to glow. Think the last four decades of clock radios, TV channel number displays after mechanical channel knobs but before they removed the bezel stuff and put it all on the screen itself, etc.
If you know of any specific YouTube videos that use the music you are thinking of, it might be named in that chunk of the video description which automatically identifies music used in the video. Or, failing that, you can ask the video creator.
I use the popcorn butter.