Guillaume de la Meuse

Each SuperGuitarApp (SGA) contains 8 Apps about an issue.SGA1 is about Guitar Fretboard GPS in a way

SGA3:Each SuperGuitarApp (SGA) contains 8 Apps about an issue.SGA3 is about:Vertical thinking (chord

SGA2:Each SuperGuitarApp (SGA) contains 8 Apps about an issue.SGA2 is about the staff and the guitar

SGA4:This App is a gift for life!This a the biggest SGA with 1834 parts and 1649 links.This app reve

Super Guitar AppsEach SuperGuitarApp (SGA) contains 8 Apps about an issue.SGA1 is about the guitar f