Open G Guitar Tuning
FATpick is a practice tool that helps you learn new songs, make the most of your practice time and stay motivated to keep playing. Opens any Guitar Pro file in an auto-scrolling tab view, synchronized with backing audio, that listens as you play along with any guitar, providing immediate feedback on your accuracy and timing.
Generate fretboard posters like this and much more for free at www.fatpick.com.
You can also create custom fretboard charts for any tuning and any number of frets or strings using FATpick's fretboard diagram generator.