This rep will be used to download patched music depending on the current tour on Mario kart tour
There is the tutorial too if you want to do them yourself https://gbatemp.net/threads/setting-up-and-modding-mkt-to-use-custom-music.655911/
put the .pck files under android storage/documents/TourMods/Music
put catalog.csv in the root of the TourMods folder