Do you mean you want iReal b on one device, and you want to view the notation on another device (presumably in a different app?) - yes. (iReal b does not import notation, PDF, jpg etc. files currently.) The apps will not be synced, so you will have to choose the song on both devices before being ready to play.
However you might be able to use just one tablet - iReal b running in the background, use MobileSheets to view your notation (PDF, jpg, png etc.)
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