Is there a App that could SLOW DOWN your music on your iPhone/iPod?

I know I'm probably being lazy & I could just look it up on the app store. I'm a guitar player self taught & I've been learning guitar parts by ear since I've been playing I hate using tab sites (like ultimate guitar for ex.). My QUESTION is I want to nail some of those guitar solo's by slowing my music down is there a app like that? Please give me your feed back

I could have sworn there was an guitar app that might help with this.
http://reviews.cnet.com/...9-233.html
http://truefire.com/blog/sevens/7-cool-iphone-apps-for-guitarists/
http://itunes.apple.com/...65124?mt=8
http://frontierdesign.com/Guitar/
Hope this helps.

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