Intervals Chart Infographic with Basic Guitar Chord Diagram

Music theory infographic titled "Intervals Chart". Archetype: KEYBOARD INTERVAL DIAGRAM. Editorial music education poster in retro 1970s vinyl style, minimal monochrome palette, clean high-contrast black, off-white, and subtle gray, vintage print texture, geometric layout. Central diagram: a precise piano keyboard with clearly marked interval relationships from a root note, showing unison, minor 2nd, major 2nd, minor 3rd, major 3rd, perfect 4th, tritone, perfect 5th, minor 6th, major 6th, minor 7th, major 7th, octave. Include musically accurate spacing and notation, arrows or connecting lines between root and target notes, semitone and whole-tone distinctions, and a compact side legend for interval families. Add a secondary circular summary or linear comparison strip for interval sizes in semitones. Include small supporting theory graphics that suggest general harmony usage, but keep the main focus on interval recognition rather than song-based progressions. No copyrighted lyrics or sheet music. Visually hint at beginner-friendly chord-learning/search intent through simple generic fretboard-style mini icons without making guitar diagrams the primary structure. Labels for note names and chord symbols stay in canonical international form; surrounding captions and titles are in English. 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.