Musical Harmony: Seventh Chords

S1, E13: Seventh chords are another essential component of Western tonal music. Observe how seventh chords (four-note chords) are built on triads (three-note chords), by adding another interval of a third. Learn how seventh chords “resolve” or propel the music forward. Study the five types of seventh chords, how they are used in different musical genres, and hear seventh chords in context.