Convert GH3 .chart Customs to CH

1. Enable file name extensions if they aren't already, it'll make some things less confusing.
Windows 10 screenshot on how to do so: https://cdn.discordapp.com/attachments/816892556335513600/816913044880752670/fileExtensions.png

2. Rename the .chart file to notes.chart.
If there's multiple, rename the one that has [Y] or [F] in the name, and delete the other(s).

3. Rename the audio to song.ogg/song.mp3, whatever the file extension is.
If there's multiple audio tracks for audio stems, make sure they're named correctly. List of supported CH stems: https://media.discordapp.net/attachments/455804941718519818/560180326757040128/unknown.png

4. Scan songs in CH, and it should generate a song.ini from the metadata in the .chart file.
If it doesn't, download this base song.ini and fill it out: https://drive.google.com/file/d/1YEvG9aG07qRqedr7KJ0bz_GY3IuxLPp1/view