At the centre of this project is the Guitar, perhaps the world's most ubiquitous instrument, here we are looking at its extended possibilities - that is to say rather than summing up guitar-ness in a Picasso like way, we would be more interested in Montrianeque extensions. Fennesz and Nakamura although both guitar players have performed in public mostly on instruments that have become physical and musical extensions of the guitar, here those relationships are explored. In my case, along with Ambarchi, we preserved the basic form of the guitar, and drew from its "non guitarlike" possibilities, but preserved, investigated and maintained its "guitar-ness". How might a Japanese, an Australian, an Austrian and an Englishman with very different musical and artistic personalities explore in real-time, through boomerang's loops stations, digital effects, mixing boards, computers etc. the world's most global instrument. The quartet form "at first was a medium that allowed four gentlemen amateurs to converse musically*" and from Hayden's time became the appropriate medium that produced music of the deepest personal expression and contemplative profundity. So here we have four gentlemen, the guitar, a conversation between the analogue and the digital, the north and the south. Keith Rowe *: "the string quartet" a history, Paul Griffiths 4G – four gentlemen of the guitar are: Keith Rowe – guitar, electronics Oren Ambarchi – guitar, electronics Christian Fennesz – guitar, computer Toshimaru Nakamura – no-input mixing board