In plain words
The scale practice that opens Barry’s workshop video (its workbook calls it ‘the ABCs’) is outlined by one player as a scale in thirds, then thirds with a half step below the first note; triads, then triads with the pickup; four-note chords, then chords with the pickup. In C major the thirds become B–C–E, C♯–D–F, D♯–E–G and so on: the pickup is sometimes a scale note and sometimes a chromatic one, but it is always a half step under.
Barry Harris (on video); Howard Rees (producer, The Barry Harris Workshop Video ¶15jazzguitar.be members (usernames kept per post), Official Barry Harris Thread (jazzguitar.be forum thread) ¶38jazzguitar.be members (usernames kept per post), Official Barry Harris Thread (jazzguitar.be forum thread) ¶39jazzguitar.be members (usernames kept per post), Official Barry Harris Thread (jazzguitar.be forum thread) ¶40jazzguitar.be members (usernames kept per post), Official Barry Harris Thread (jazzguitar.be forum thread) ¶41Frédéric Galliano, Notes on the Method of Barry Harris ¶14Frédéric Galliano, Notes on the Method of Barry Harris ¶16Frédéric Galliano, Notes on the Method of Barry Harris ¶18jazzguitar.be members (usernames kept per post), Barry Harris & Wes Montgomery (jazzguitar.be forum thread) ¶124
Barry used the same device when he built phrases with a band. In a 1998 workshop he had the players go up the chord on the tonic of B♭ major from a half step below its first note. Working on Confirmation, he called for the chord on the seventh of F7 the same way, followed by a chromatic run down to the tonic of B♭.
In a 1998 workshop Barry said that all music, and soloing most of all, comes down to getting a half step in at the right time and in the right place. To show it he began at the top of the piano and ran down, adding half steps so the run fitted the song. However you run, he said, a half step has to go in somewhere for everything to come out right.
He wanted the placing felt, not looked up. When a student’s run started to go wrong and he straightened it out without thinking about half steps, Barry said that proved the point. You can be quite wrong and still make the line come out. He even used ‘wrong’ on purpose: listeners react most to diminished notes, which sound wrong, so throw a little wrong in and then make it right.
The 1998 workshop, part 120:0220:3833:36Let the body do it2:182:51
Step by step
Thirds with a pickup: before each third of the scale, play the note a half step below its first note.
C major- B
- C
- E
- C♯
- D
- F
- D♯
- E
- G
- E
- F
- A
jazzguitar.be members (usernames kept per post), Official Barry Harris Thread (jazzguitar.be forum thread) ¶39Frédéric Galliano, Notes on the Method of Barry Harris ¶14jazzguitar.be members (usernames kept per post), Barry Harris & Wes Montgomery (jazzguitar.be forum thread) ¶124
Triads with a pickup: the same thing before each triad of the scale.
C major- B
- C
- E
- G
- C♯
- D
- F
- A
- D♯
- E
- G
- B
jazzguitar.be members (usernames kept per post), Official Barry Harris Thread (jazzguitar.be forum thread) ¶40jazzguitar.be members (usernames kept per post), Official Barry Harris Thread (jazzguitar.be forum thread) ¶41Frédéric Galliano, Notes on the Method of Barry Harris ¶16
Four-note chords with a pickup: go up the chord from a half step below its first note. Barry’s two calls were the chord on the tonic of B♭ major and the chord on the seventh of F7.
Chord on the tonic of B♭ major- A
- B♭
- D
- F
- A
Chord on the seventh of F7- D
- E♭
- G
- B♭
- D
The 1998 workshop, part 154:08Confirmation5:27jazzguitar.be members (usernames kept per post), Official Barry Harris Thread (jazzguitar.be forum thread) ¶41Frédéric Galliano, Notes on the Method of Barry Harris ¶18
In a line (Howard Rees’s worksheet and video): on the C7 scale, rest for an eighth, then play C♯ on the ‘and’ of one and go up the chord on the second (D–F–A as a triplet) to its top note, C. That C then decides the way down: one extra note, B, between C and B♭.
C7 scale, chord on the second from C♯- C♯
- D
- F
- A
- C
- B
- B♭
- A
- G
- F
- E
- D
- C
How to Apply the “Rules” to Build Lines1:13Howard Rees’ Jazz Workshops, Using the Extra Note Rules to Build Lines ¶3
an added note, outside the scale
How he said to practise it
Take each scale in thirds, triads and four-note chords, then play each of them again with the half-step pickup in front.
Barry Harris (on video); Howard Rees (producer, The Barry Harris Workshop Video ¶15jazzguitar.be members (usernames kept per post), Official Barry Harris Thread (jazzguitar.be forum thread) ¶38jazzguitar.be members (usernames kept per post), Official Barry Harris Thread (jazzguitar.be forum thread) ¶41
Practise putting half steps into runs, in rhythm, until you can choose the spots yourself. Barry had a class put them between the tonic and seventh, the five and four, and the two and one from every degree, to break old habits.
In Barry’s words
Each one plays from the moment he says it. Every other moment he teaches it is listed below.
If you’re going to be a soloist, that’s all there is. You got to put a half step in at the right time with the right place.
I can just keep running, and a half step has got to be put in there somewhere to make everything come out right, no matter what you do.
The audience reacts to wrong... You have to throw the little wrong in, then you make it right.
Do the chord on the seventh of an F7 with a [half] step below the first note.
Where this comes from
Everything above is drawn from these. Open any one to check it.
Every moment he teaches it9 moments in 3 recordings
Each time opens the transcript there; the video plays when you are online.
The 1998 workshop, part 1
- 28:33
Sums up soloing as a half step at the right time and place; starts running down from the top.
- 29:39
Runs down the piano to fit a song; a half step has to go in somewhere.
- 33:36
Even a wrong run can come out; plays a B♭7 run from the third with and without a half step.
- 54:08
Calls the chord up on the tonic of B♭ major, starting a half step below its first note.
- 20:02
A student fixes a run by feel; Barry says that proves you put half steps in by feel.
- 14:41
Practise putting half steps in so you can pick your own spots.
- 21:11
Asks for half steps between 1–♭7, 5–4 and 2–1 from each degree to break habits.
Let the body do it
- 2:18
Audiences react to diminished ‘wrong’ notes: throw a little wrong in, then make it right.
Confirmation
- 5:27
Chord on the seventh of F7 from a half step below, then chromatic down to B♭.
From the lessons1 lesson, 4 points
Notes taken from Barry’s classes, each tied to the moment it comes from.
Surrounding notes and the well-placed half step
- Idea
- Exercise
Learn surrounding notes: approach a target from the notes on either side of it. Barry’s example is the fifth of A flat, E flat, surrounded by E and D. In another demonstration he said he already had half of the surrounding notes, so all he had to add was the C and the C sharp.
The 1998 workshop, part 317:33The 1998 workshop, part 113:58
- Idea
Barry sums up music, and soloing above all, as putting a half step in at the right time and place. He can start at the top of the piano, run down and add half steps to fit any song, such as I Got Rhythm or All God’s Children. Whatever you do, a half step has to go in somewhere to make the line come out right.
- Idea
Barry has found that audiences react most to diminished notes, because against the harmony they sound wrong and ears respond to wrongness. His advice: throw a little wrong into the line, then make it right. Listeners don’t know what to think, but you have their attention.
Let the body do it2:18
In writing2 notes
What his interviews, his students’ class notes and other teachers’ articles add.
Rees’s improvisation course gives starting a semitone below a chord a lesson of its own, placed after the line-building lessons on intervals, triplets, triads and four-note chords.
Howard Rees / Jazz School Online, Improvisation Lessons for All Instruments (21-lesson list) ¶6Howard Rees / Jazz School Online, Improvisation Lessons for All Instruments (21-lesson list) ¶7Howard Rees / Jazz School Online, Improvisation Lessons for All Instruments (21-lesson list) ¶8Howard Rees / Jazz School Online, Improvisation Lessons for All Instruments (21-lesson list) ¶9Howard Rees / Jazz School Online, Improvisation Lessons for All Instruments (21-lesson list) ¶10
A guitarist on the jazzguitar.be thread practises every triad and seventh chord of a scale in all inversions and both directions with the approach note in front, and sometimes moves the approach to a later note of the arpeggio. He also plays such arpeggios as substitutes, for example Fmaj7 over a ii–V in C.
How other teachers explain it3 videos, 13 series episodes
Barry’s students, and their students, teaching it their way. A second opinion, not Barry.
- How to Apply the “Rules” to Build Lines
Lines on the C7 scale: a chord started a half step below, then down by the rule for its top note.
5 min, transcript On YouTube
- Things I’ve Learned from Barry Harris Episode 4 Barry’s Chromatic Scale and Other Things
Episode 4; Galliano’s notes on it include the thirds, triads and chords with chromatic pick-ups.
17 min, transcript On YouTube
- THIS Is How You Play Bebop Like the Masters | Barry Harris Half-Steps and Triplets
Barry’s half steps and triplets in bebop lines (from the title).
11 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.
Read further4 links
These open on the web.
Free to read
- Barry Harris (on video); Howard Rees (producer, The Barry Harris Workshop Video
— Barry’s workshop video and workbook opening with the ‘ABCs’ scale practice (paywalled; contents free).
- Jazz School Online
— Howard Rees’s line-building lesson on starting a semitone below a chord (paywalled).
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 with written-out scales in thirds, triads and chords, each also with a chromatic pick-up.
- jazzguitar.be Official Barry Harris thread, post #21 (joe2758, 14 Oct 2016): attendee-style outline of the ‘ABCs’ on Rees DVD 1 (important minor ignored for soloing; scale up and down tonic-to-7th; thirds, thirds with half step below, triads, triads with pickup, 4-note chords, chords with pickup; 3 important arpeggios in all inversions; pivoting)
player summarising Barry’s DVD — A player’s outline of the ‘ABCs’ from Barry’s workshop video, pickups included, in solfège.