Music has to download? or am i crazy?

[BowTheMan89]

All of my music excluding about 5 songs, is currently "greyed out" when i click a song to play, it takes about a minute before it starts playing, like its downloading. i do not have iTunes match, my hd usage is showing that all my music is actually stored on the phone. what is this about?

I realize this is probably a silly question of me not doing enough research, but does anyone have a quick answer for me?

 

[JoeyCloverfield]

If you just upgraded to iOS 6 then it's possible that your device is still restoring from a back-up. If the back-up is on iCloud, it's going to take a lot longer.