iReal b for iOS does not read the file format .irb. You need internet connection temporarily to download the songs. Can you join a wireless network?
http://irealb.com/forums/showthread....k-player/page3
also run a search on Amplitube.
iOS4 and iOS 5 has multitasking for the newer models of iPhone, iPod touch and all iPads so many of us do not need to export as .wav, just switch between them as it plays.
Each app should have a Background Audio setting on/off setting.
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