I heard it for the first time that .VGM and Famitracker, but I think it's interesting. I was planning to add an export function such as MIDI.
As for the NES, some specifications will be exceeded, so I'm not sure if it can be exported perfectly as it is. For example, this software can use a lot of noise parts, but NES can only use one part. (Still, if used well, it will work well.)
Thanks for the idea!