Guitar Barre Chords Infographic Hand Position Chart

Music theory infographic titled "Guitar Barre Chords". KEYBOARD INTERVAL DIAGRAM adapted to explain guitar barre chords as general theory: a precise horizontal piano keyboard as the central diagram, with clearly marked interval relationships used to build movable barre-chord shapes, plus accurate auxiliary guitar fretboard mini-diagrams showing barre finger positions, full index-finger bar, remaining finger placements, root notes, and movable major/minor/E-shape/A-shape concepts. Musically accurate notation, finger positions and intervals. Include canonical note names and chord symbols such as C, D, E, F, G, A, B, Bm, G7 where relevant; surrounding educational captions, headings, legends, and annotations in English. Retro 1970s vinyl editorial poster aesthetic, minimal monochrome palette, clean geometric layout, subtle print texture, bold vintage typography, high contrast, sparse elegant labeling, no copyrighted lyrics or song sheet excerpts. Emphasize visual search intent through clear hand-position-chart style composition without using the search phrase as on-image text. Render the keyboard intervals and guitar barre mechanics precisely and pedagogically. All text MUST be written in English (array). Every heading, label, caption, legend and metric name in the image must be in English — not English. Spell each English word correctly using English characters and diacritics. Numbers stay as digits, no watermarks Musically accurate notation, finger positions and intervals. Note names and Italian musical terms stay in canonical international form. No copyrighted song lyrics or sheet music.