Hi dflat
I think you love Life much more when you know "Calypso Score" for iPad. Itīs the best App for your sheets.
You can export a mp3 file from IReal and in the Calypso Score you can sync with your sheet. You also can sync with the Titel from the Real Book or any other Book.

I Love Calypso Score and i love iReal Pro because both Appīs comlets the other one.

Life can be so wonderful.