In plain words
The most important small chord to learn, Barry told pianists, is a sixth chord for a major chord, and there is nothing wrong with its sound. He also said a major seventh chord is really a sixth chord with one diminished note in it, and diminished notes ask to be moved.
Small chords, not big ones2:132:49Introducing the sixth diminished scale21:25
Against a major chord there are two sixth chords: the one on the tonic and the one on the fifth. For E♭ major that is E♭6 and B♭6. The B♭6 gives you the major seventh and the ninth; the E♭6 gives you the sixth and the tonic. For pretty chords, Barry said, hit one and add a single note of the other; adding the C to the B♭6 struck him as almost unbelievable.
Bud Powell, Barry said, went further than these two and played other sixth chords against the major, F6 among them. The clip ends with his reminder that you have to know the scale.
The sixth on the fifth is also the minor seventh on the third degree (in C, G6 has the notes of Em7). Barry recalled something Monk did that showed him a chord on the third degree, one you might think of as A minor seventh, is really a one chord.
Jazz theory, part 3, with score3:52jazzguitar.be members (usernames kept per post), Barry Harris: Maj6 built on the 5th or on the tonic ¶14
Step by step
Find the two sixth chords of the major chord: one on its root, one on its fifth.
E♭6, the sixth on the tonic- E♭
- G
- B♭
- C
B♭6, the sixth on the fifth- B♭
- D
- F
- G
Two sixth chords against a major key0:04
Know what each one adds. Over E♭ the B♭6 brings D and F, the major seventh and the ninth; the E♭6 brings E♭ and C, the tonic and the sixth. G and B♭, the third and fifth, are in both.
Two sixth chords against a major key0:38
Play one sixth chord and add one note of the other, for example the C of E♭6 added to B♭6.
B♭6 with C (+) added, over E♭- B♭
- C
- D
- F
- G
Two sixth chords against a major key0:38
A practice movement from Howard Rees and from students of Alan Kingstone’s book: go from the sixth on the fifth to the sixth on the tonic. Two notes stay; the other two are diminished notes of the tonic sixth and move down a whole step, directly or through half steps, so that the chord in the middle is a diminished chord.
G6 over C- E
- G
- B
- D
G diminished (passing)- E
- G
- B♭
- D♭
C6- E
- G
- A
- C
Moving Sixth Chords Into Each Other1:102:22jazzguitar.be members (usernames kept per post), Official Barry Harris Thread (jazzguitar.be forum thread) ¶1949jazzguitar.be members (usernames kept per post), Kingstone/Harris Harmonic Method for Guitar ¶309
an added note, outside the scale
In Barry’s words
Each one plays from the moment he says it. Every other moment he teaches it is listed below.
There are two sixes that you play against E flat major. The 6th that’s found on the tonic, or the 6th that’s found on the 5th, Bb6.
The Bb6 gives us the major 7th and the 9th. This 6th gives us the 6th and the tonic.
You want to hear pretty [chords]: when you hit this, and you add one note of the other one... that C is almost unbelievable
A major 7th really is a 6 with one diminished note.
Where this comes from
Everything above is drawn from these. Open any one to check it.
Every moment he teaches it8 moments in 5 recordings
Each time opens the transcript there; the video plays when you are online.
Two sixth chords against a major key
- 0:04
Two sixth chords against E♭ major: E♭6 on the tonic, B♭6 on the fifth.
- 0:38
B♭6 gives major seventh and ninth, E♭6 the sixth and tonic; adds C to the B♭6.
- 2:20
Says Bud Powell went further, playing other sixth chords such as F6 against the major.
- 3:59
Closes the demonstration: you have to know the scale.
Introducing the sixth diminished scale
- 21:25
A major seventh chord is really a sixth chord with one diminished note that wants to move.
Small chords, not big ones
- 2:13
The most important small chord to learn: a sixth chord for a major chord.
Jazz theory, part 3, with score
- 3:52
Monk showed him a chord on the third, which you might call A minor seventh, works as a one chord.
Sixth chords and their relatives
- 1:37
Says that where C major seventh comes in you still play C major sixth (rough caption).
From the lessons1 lesson, 7 points
Notes taken from Barry’s classes, each tied to the moment it comes from.
Voicings: little chords, drop voicings and colour
- Idea
If you know all the big chords, Barry says, the small chords are already in your hands, yet many players cannot rip off simple small-chord playing because they never learned the little things. Most important is learning to play a sixth chord for a major chord; there is nothing wrong with that sound. He illustrated with We’ll Be Together Again, a song he says everyone should know.
- Exercise
In a workshop Barry had the players play a chord on the tonic of B-flat major and the two chords that follow it; some could not play those chords down by half steps and faked it. He asked who would notice that the first chord is made of two triads, then had them play a D minor triad and its next inversion, starting from the fifth.
- Exercise
Following Schoenberg, Barry names the voices of a four-note chord like a choir: soprano is 1, alto 2, tenor 3, bass 4. On a C diminished seventh, try drop 2, drop 3, drop 2 and 4, and even drop 2 and 3. Run each voicing up from the bottom, one note at a time, and you can make up a whole song with it. He says this is why jazz is the continuation of classical theory.
- Exercise
You play with your family first, Barry says. For a C seven he puts the E-flat triad above it (E-flat is in C’s minor-third family), then adds E natural right next to the E-flat. The E is what makes it sound like a dominant; without it you hear a minor seventh. Then let the voices move and resolve to F major.
- Idea
Two sixth chords work against E-flat major: E-flat six, on the tonic, and B-flat six, on the fifth. The B-flat six gives the major seventh and the ninth; the E-flat six gives the sixth and the tonic. For pretty chords, play one and add a single note from the other; adding a C struck Barry as almost unbelievably pretty. He adds that Bud Powell went further, using other sixes such as F six against the chord. You have to know the scale.
- Idea
While a pianist was comping on Misty, Barry stopped the playing: he wanted a plain D minor, not the augmented-ninth sound players habitually add to it. In a D minor you may put the E next to the F, but otherwise keep it simple. He also asked for an A7 with B-flat and E-flat added. The message is to choose each chord sound deliberately instead of reaching for the same altered voicing every time.
- Exercise
A pretty trick: play two tritones together, for example C, F, F-sharp, B, then move into the sus sound. Barry stresses that you must know the scale, not just the shape. To practise, move only the top and bottom voices, and also try it from the diminished.
The C7♭5 scale in drop 2, and a tritone trick0:000:421:241:59
In writing6 notes
What his interviews, his students’ class notes and other teachers’ articles add.
Rees’s starting point for a major seventh chord is the major sixth chord built on the fifth degree of the scale.
Howard Rees, Evolutionary Voicings, Part I: Barry Harris Keeps Things Movin’ ¶27
Rees’s chart gives a C major chord two sixth chords to think of, each with its own diminished chord: G6 with F♯ diminished and C6 with B diminished.
Masayasu Tsuboguchi, who attended Barry’s workshops, counts hearing a major seventh chord as the sixth chord a fifth above, which adds the ninth, among the most useful ideas he took from Barry’s remarks.
A study group reading Alan Kingstone’s guitar book: C6 played over F6 makes F major ninth. C6 is F6 with two notes taken from its diminished chord, and moving those two notes down a half step gives C diminished, then down again resolves to F6.
jazzguitar.be members (usernames kept per post), Kingstone/Harris Harmonic Method for Guitar ¶307jazzguitar.be members (usernames kept per post), Kingstone/Harris Harmonic Method for Guitar ¶309
A forum member’s caution: use the sixth on the fifth on any major chord as long as the melody allows it, meaning the chord’s major seventh does not clash with the root in the melody. Its chords can then alternate with the diminished chord of their own scale, G6 with A diminished on C.
jazzguitar.be members (usernames kept per post), Official Barry Harris Thread (jazzguitar.be forum thread) ¶1947jazzguitar.be members (usernames kept per post), Official Barry Harris Thread (jazzguitar.be forum thread) ¶1948
Jazz School Online’s guitar course gives the sixth on the fifth its own lesson, followed by a lesson applying it to the important minor.
Jazz School Online (Alan Kingstone’s guitar lessons), Harmony Lessons for Guitar (26-lesson list) ¶12Jazz School Online (Alan Kingstone’s guitar lessons), Harmony Lessons for Guitar (26-lesson list) ¶13
How other teachers explain it6 videos, 18 series episodes
Barry’s students, and their students, teaching it their way. A second opinion, not Barry.
- Moving Sixth Chords Into Each Other
The two sixth chords for a major chord; G6 into C6 through all inversions, and C6 to F6 over D minor 7.
6 min, transcript On YouTube
- Explaining The Barry Harris Harmonic Method For Classical Pianists Lesson 4 “The 6th On The 5th!”
Lesson 4 of his series for classical pianists: the sixth on the fifth.
8 min On YouTube
- Jazz Mandolin Instruction Barry Harris Sixth on the Fifth Pete Martin
Jazz mandolin lesson 33: sixth on the fifth.
7 min On YouTube
- HARMONIC SNACK 3 (6 on the 5th Harmony)
Harmonic Snack 3: six on the fifth harmony.
2 min On YouTube
- HARMONIC SNACK 5 (6 on the 5th Harmony/Chord Alchemy part 2)
Harmonic Snack 5: six on the fifth harmony, part 2.
6 min On YouTube
- Day 6 November Guitar Practice - Barry Harris Playing with the Family of Major 6th Chords!
Guitar practice with the family of major sixth chords.
21 min On YouTube
In the teaching series
Episodes on this idea in the long series by other teachers. Each name opens that whole series in order.
Mike Hayes Guitar
- Daily harmony practice YouTube
- Three moves: common-tone diminished, sixth on the fifth and fourth YouTube
- Daily practice routine from Bb6 YouTube
- Daily practice routine: sixth-chord overlays YouTube
- Connecting major 6th chords from one diminished YouTube
- Diminished movement through ii-V-I voicings YouTube
- Sixth-chord substitution on Blue Moon YouTube
- Adding movement to the ii-V-I without changing the harmony YouTube
- Applying the system to Makin’ Whoopee: movement between phrases YouTube
Where the accounts differ1 point
Students disagree on when to use it. One summary limits the sixth on the fifth to major sevenths that are not the tonic and plays the tonic as its own sixth; another member applies it to any major chord the melody allows; Harry Likas recalls Barry insisting on it at the B♭ tonic chord in bar 23 of Stella By Starlight, while another member says Barry left the choice to taste.
jazzguitar.be members (usernames kept per post), Official Barry Harris Thread (jazzguitar.be forum thread) ¶1936jazzguitar.be members (usernames kept per post), Official Barry Harris Thread (jazzguitar.be forum thread) ¶1937jazzguitar.be members (usernames kept per post), Official Barry Harris Thread (jazzguitar.be forum thread) ¶1947jazzguitar.be members (usernames kept per post), Barry Harris: Maj6 built on the 5th or on the tonic ¶7jazzguitar.be members (usernames kept per post), Barry Harris: Maj6 built on the 5th or on the tonic ¶11
Read further4 links
These open on the web.
Free to read
- Howard Rees, Jazz Workshops
— Free: Howard Rees on voicing a major seventh with the major sixth built on the fifth, among other sixth-chord equivalents.
- jazzguitar.be members (usernames kept per post), Official Barry Harris Thread (jazzguitar.be forum thread)
— Free forum thread where students set out and argue over when to use the sixth on the fifth.
Books and paid courses
- Frederic Galliano, Notes on the Method of Barry Harris (HTML + PDF, updated Jan 2026): scale exercises, chromatic scale, Parker ideas, families, 4 chord scales, moving in fourths, 5-4-3-2, half-step tables, important arpeggios, scale outlines of blues/rhythm/Cherokee/Donna Lee/How High the Moon/Night in Tunisia
attendee-of-videos notes (from Chris Parks’ TILF + Labyrinth + Kingstone) — Free notes by Frédéric Galliano, with a written-out sixth on the fifth movement (pointing to Kingstone’s chapter 2).
- Alan Kingstone, The Barry Harris Harmonic Method for Guitar (2006), 121 pp + CD
student (Alan Kingstone) — Paid: Alan Kingstone’s guitar book, whose second chapter covers the sixth on the fifth.