Is yours Taiko Jiro or the official one?

For Taiko Jiro, put the PEK folder in the music package on the memory card, keep the music path as /SDCARD/PEK/MUSIC and the drum score path /SDCARD/PEK/BOOK/, and you can play , if there is a new version, try renaming the PEK to PEK2 or PEK3, adopt it