A Seventh Chord is typically a four-note chord that includes some kind of 7 in its chord structure... Here is a gallery of the five most commonly-encountered seventh chords: Major, Minor, Dominant, Diminished, and Half-Diminished... Major 7th Chord symbol: Cmaj7, CM7, or CΔ7 Chord structure = 1-3-5-7 A great way to develop your chord vocabulary is … Continue reading Chords: 7th Chords