Guitarians official mobile app ✄ ---------------------- The main function: ✓ automatic turn Key, turn CAPO         ► Just one click, score immediately as you like Key!         ► easy to use! ✓Chord table         ► Press Chord understand? Look Chord immediately understand! ✓ Favorites function -Bookmark         ► Press the button collection in my music collection back              ✓ score list -Playlist         ► To Busking? The repertoire into the music list          ✓ song video         ► M