You can import a MIDI file to famitracker (an older version). I discussed it on this post.
https://nesdoug.com/2016/01/24/25-importing-a-midi-to-famitracker/
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Other projects in C.
Mojon Twins
https://github.com/mojontwins/MK1_NES
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cppchriscpp
https://github.com/cppchriscpp/nes-starter-kit
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I wrote 2 unofficial updates to the famitone music driver. NOTE. I fixed the bugs (I think).
famitone3.3, which adds all notes and a volume column (sacrifices some efficiency in size and speed).
https://github.com/nesdoug/famitone3.3
And famitone4.1, which adds 1xx, 2xx, and 4xx effect support.
https://github.com/nesdoug/famitone4.1
I have used these in some of my games. Jammin Honey and Flappy Jack, for example.
I added some other features and bug fixes, which I put in the original version also…
https://github.com/nesdoug/famitone2d
Changes:
-added song names to file output
-added command line switch -allin prevents removal of unused instruments
-added command line switch -Wno suppresses warnings about unsupported effects
Bugfixes:
-multiple D00 effects (different channels) incorrect pattern length
-Bxx below D00 effect (different channels) incorrect pattern length
-Bxx loop back causing wrong instrument inserted at loop point
example of new switches:
text2vol filename.txt -ca65 -allin -Wno
