Island Theory Labby Island Production Academy

01 · Chords · Major & Minor Chord Builder

Build a chord. Hear the difference.

Make a major triad, flip it to minor, and hear that only one note — the third — moves by a single semitone.

C major (C – E – G)

The ↕ third is the note that moves; the dashed key shows where it goes for minor.

1Root
C
33rd · moves
E
55th
G

Major uses degrees 1–3–5; minor uses 1–♭3–5. ♭3 means the third is one semitone (half step) lower than the major third. The root and fifth stay the same. ♪ marks keys currently sounding.

C+4E+3GMajor = 4 + 3 semitones (half steps)