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Re:Gameboy Music and Sound Archive for MIDI by RunSet on Thursday December 21, 2023 @12:34PM (#38723651)
Also for those interested in this sort of thing, it is possible to extract the music data from a ROM and play it back using a program that emulates only the console's sound hardware.

In the case of gameboy games, the music data is usually provided in the "gameboy sound" format, with a .gbs file extension.

https://www.zophar.net/music/gameboy-gbs

https://gbs.joshw.info/

GBS players typically take the form of a plugin or component for your audio player of choice.

Re:Gameboy Music and Sound Archive for MIDI by khedoros1 on Friday December 22, 2023 @10:30PM (#38741374)
That was one of the things I did when I added audio support to my NES emulator; add NSF support as a mapper with some special case code (doesn't display video, uses controller inputs to switch tracks). It seems like it only took me a couple of hours to add.