OnSong and other apps allow uploading via dropbox files that has charts written in the format of [Am] lyrics lyrics [Bb7] lyrics lyrics , which can then be transposed. Sponsor this project. Safety starts with understanding how developers collect and share your data. I do admire those who can, though. Sure, you love your well-worn Real Book, dog-eared at all the right places, sharpie-corrected at all the wrong, stained with coffee and beer
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