Vintage Intervals Chart Keyboard Diagram for Music Theory

Music theory infographic titled "Intervals Chart". Archetype: KEYBOARD INTERVAL DIAGRAM. Editorial music education poster in vintage music print style with a sage & rose palette. Render a precise piano / keyboard diagram from above, with clean, musically accurate white and black key layout, and clearly highlighted interval relationships measured from a single root note across the keyboard. Show musically accurate interval spacing for unison, minor 2nd, major 2nd, minor 3rd, major 3rd, perfect 4th, tritone, perfect 5th, minor 6th, major 6th, minor 7th, major 7th, and octave. Include precise visual markers for each interval and optional finger position indicators appropriate for piano pedagogy. Use canonical note names such as C, D, E, F, G, A, B and accidentals where needed. Surrounding captions, title, legend, and explanatory labels must be in English. Avoid any copyrighted song lyrics or sheet music. Keep the composition visually focused on interval recognition on keyboard, with elegant engraved-print textures, subtle aged paper background, ornamental vintage borders, and refined educational layout. Do not visually depict snare drum notation or drum elements; keep the image strictly about piano intervals. 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.