The sus2 chord, short for "suspended 2nd," is an intriguing and harmonically open chord that substitutes the third of a major or minor chord with the second note, also known as the major second interval. This results in a sound that feels both airy and unresolved, as it lacks the traditional major or minor third that typically defines the chord's emotional quality. Popular in pop, rock, and jazz, the sus2 chord provides a light and fresh alternative to standard chords, lending musical tension and anticipation to chord progressions. When playing a sus2 chord on the guitar, the absence of the third frees it from the grounded nature of major or minor chords, making it an ideal choice for creating atmospheric soundscapes or accentuating creative harmony in songwriting. For guitarists, mastering the sus2 chord offers an expanded palette for variability and dynamic expression in their playing.