Play the add2 chord on piano
The add2 chord enriches the major triad with a major second, creating an open and bright sound similar to sus2 but keeping the major third.
Chord composition
| I | II | III | V |
| Root | Major second | Major third | Perfect fifth |
| 0 | 2 | 4 | 7 |
Formula 1 - 2 - 3 - 5
Theory
The add2 chord combines major third and major second. C add2 = C-D-E-G, G add2 = G-A-B-D. Unlike sus2 which replaces the third, add2 keeps it, creating a denser sound. The proximity between the second and third (2 semitones) creates a characteristic harmonic color.
Play the add2 chord on the piano
