Adding Content - kbz/SIFTrain GitHub Wiki
Whenever you receive a set of beatmap files (.rs) and music files (.mp3/ogg/wav) you have to copy them into the folders created by the application.
place the .rs files under:
beatmaps/datafiles
and the music files under
beatmaps/soundfiles
The path to these folders varies from device to device, so when you first start up the application, be sure to check the settings screen to find out where the folder was created.
Important:
Make sure that both beatmaps and the music files have the same name (before the difficulty ID)
Song File: music.mp3
Beatmap File: music_easy.rs