Triads are a group of 3 notes that form a major or minor chord.
Major triads are formed by the first (root), third, and fifth notes of the major scale.
Major Triad Formula: using the C Major Scale, the notes shown in red are used to play a C Major triad.
| C | D | E | F | G | A | B | C |
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
C + E + G
Minor triads are formed by the first (root), flat third, and fifth notes of the major scale.
Minor Triad Formula: using the C Major Scale, the third note is flat, or lowered a half step down, to play a C Minor triad.
| C | D | E♭ | F | G | A | B | C |
| 1 | 2 | 3♭ | 4 | 5 | 6 | 7 | 8 |