The well-tuned guitar / John Schneider -- Transforming the microtonal fingerboard : 'small' frets, LEGO and robots -- Interview with Tolgahan Çoğulu / Richard Perks -- The expanding fretless guitarscape : practice and progress / Richard Perks -- Touching the apple without gloves -- Interview with Cenk Erdoğan / Richard Perks -- Extended range instruments : Towards a new organology of the guitar / Tom Williams -- I should have just learned how to play the organ -- Interview with Charlie Hunter / Richard Perks -- The transformed space of the Ligeti guitar / Katalin Koltai -- Grains, glitches and infinite space : guitar effects pedals, digitization and textural guitar aesthetics / Robert Strachan -- The sonic maelstrom -- Interview with Nels Cline / John McGrath -- "Something seems wrong, should that be happening?" : avantfolk guitar and glitch aesthetics, a practice-based perspective / John McGrath -- "A field of reactivity" : Moog guitar and experimental systems -- Interview with Bill Thompson / John McGrath -- The digital fretboard : remapping and relearning the guitar's pitch matrix with MIDI and Max/MSP / Milton Mermikides -- Augmented reality guitars : extended instruments and notation for a 21st century practice / Amy Brandon