Reference
Triads in Major Scales
The following example show triads that may be formed by using the notes of a major scale:
M = major; m = minor; d = diminished
In all major scales, triads that are formed on degrees I, IV, and V are major. Those formed on degrees II, III, and VI are minor; the triad formed on degree VII is diminished.
See C > Chord for related entries.
