The 5 Main 7th Chords

Front

Major 7th or ∆

Back

Root, Major 3rd, Perfect 5th, Major 7th

Front

7th or dominant 7th

Back

Root, Major 3rd, Perfect 5th, minor 7th

Front

minor 7th or -7

Back

Root, minor 3rd, Perfect 5th, minor 7th

Front

half diminished - minor 7(b5) - ø7

Back

Root, minor 3rd, flatted 5th, minor 7th

Front

diminished 7 OR o7 chord

Back

Root, min3, flatted 5th, double flatted 7th

Front

CMaj7 or C∆

Back

C E G B

Front

C7

Back

C E G Bb

Front

Cmin7 or C-7

Back

C Eb G Bb

Front

Cm7(b5) or half diminished 7th

Back

C Eb Gb Bb

Front

Co7

Back

C Eb Gb Bbb