My music on my iphone is acting up?

I just got ios7 on my iphone 4 and everything has been acting fantastic but when I'm playing music and I unlock my phone it back tracks the song or skips it. What do I do?

If that's a problem with all your songs you might try changing
your memory card… As it might be a corrupt card causing all the trouble
Though problems like yours aren't that uncommon… Check this link out

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