Level 2 — Music Is Numbers

Major Chord Formula — Four Then Three

Build any major triad: root, +4 half steps, +3 half steps.

Major Chord Formula — Four Then Three

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Lesson script

Major chord: start on the root (letter name). From the next half step above the root, count four half steps for the middle note, then three more for the top — Cynthia’s studio way: root, up four, up three.

Build F major, D major, A major. Check against shapes you already know.

Done when: you can build a major triad on a letter someone else picks.

Instrument paths

  • Piano: Count half steps aloud including black keys.
  • Strings: Root + fifth first, then add the third.
  • Percussion: Three taps: root, third, fifth.

Learning modes

  • Solo child: Build five random majors.
  • Child + parent: Parent picks letters from a jar.
  • Family: Race to build (accuracy over speed).