A wide range of different shapes and sounds: folk, classical, or baroque guitar, 12-string guitar, arpeggione (or Gambe guitar), reduced-size or triangular-body guitar, Jo guitar (a banjo in a guitar!), standard guitar Weissenborn, dreadnought guitar, jumbo, medieval, flamenco, gypsy jazz, and other inventions: mano jazz, sun guitar, ‘allumette’, singers, ‘le mouton bleu’, shamrock, Brazilian viola, clandestine, 10-string guitar electro…..