No Music Showing in Any Music Player

My Samsung Galaxy S2 I9100 is rooted + 3rd party Jellybean 4.1.2 XXLS6 MIUI rom Music apps tested: DoubleTwist | Songbird | Google Music In all of these apps, the music list shows empty. I have tried: - Reboot recovery & "fix permissions" - Launching music files directly from File Explorer (WORKS) I have a feeling it may be partition or mounts or permissions related. That the apps just can't read the file-system or something? Can anyone suggest what other things I can try?