The video demonstrates some of the most common chords: Major, minor, Augmented, diminished, and various seventh chords.
Major -------- root - M3 - P5
minor -------- root - m3 - P5
diminished - root - m3 - d5
Augmented - root - M3 - A5
Maj7 ---------- root - M3 - P5 - M7
7 ---------------- root - M3 - p5 - m7
min7 ---------- root - m3 - P5 - m7
dim7 ---------- root - m3 - d5 - d7
Learn more about chords.
Learn about extended chords.
Learn about chord inversion.