be stacked in thirds. ⛄ All triads are chords, but not all chords are triads! Major Chord/Triad: A triad where the distance between the root and third notes is two whole steps, and the distance between the third and fifth is one and half step. (2W, 1.5W) Minor Chord/Triad: A triad where the distance between the root and third notes is one and half steps, and the distance between the third and fifth is two whole steps. (1.5W, 2W) Inversion: Rearrangement of top to bottom elements in music.