Overview
Unfortunately in few occasions Unity changes way how it determines local songs storage. Here is guide what to do then.
Rytmik songs folder might have been changed after an update
Most users do not experience this problem, but there might have been an update which uses specific version of Unity and that created an all new folder. The update now links to a new folder instead of the old. You can simply copy the files from the old folder and paste them into the new folder.
OLD FOLDER LOCATION:
C:UsersUSERAppDataLocalLowCINEMAX, s_r_o_Rytmik UltimateInternalsongs
NEW FOLDER LOCATION:
C:UsersUSERAppDataLocalLowCINEMAX_ s_r_o_Rytmik UltimateInternalsongs
where USER is you system user name
—> Notice the CINEMAX, and CINEMAX_