Walking bass

Quarter-note lines that outline harmony — jazz and blues foundation. Guitar/ukulele chord pages give you the changes; bass owns the connecting tones.

Walking lab — ii–V–I in G

Three bars, four quarter notes each, over Am7 → D7 → Gmaj7. Beats 1, 2 and 3 of every bar are chord tones. Beat 4 is a chromatic approach note a half step from the next bar's root, so the change arrives before the chord does. The loop returns to Am7, which is why bar 3 ends walking downward.


        

    The square is G, the key's tonic. The whole line lives between frets 2 and 7 on three strings — one hand position, no shifts. The neck names every accidental with a sharp, so it reads G♯ and A♯ where the walk above is spelled A♭ and B♭: the same two frets, and the flat spelling is the one you would write for a line that falls into its target.

    Walking is a thinking skill. Slow harmony changes beat fast fingers.

    Simple rules

    • Hit chord tones on strong beats (especially beat 1).
    • Approach the next root by half step or scale step.
    • Keep mostly quarters; use a skip or chromatic for color.
    • Same note length does not mean same volume — shape phrases.

    Chord tones first

    For a bar of Cmaj7, prioritize C–E–G–B. You do not need all four every bar — but beat 1 should usually be a chord tone (often the root).

    Shared theory: Western theory.

    Approaches

    • Half-step below / above the next root.
    • Scale step from the current key/mode.
    • Chromatic walk-up / walk-down into the target.

    Pick one approach type per practice day so your ears learn the sound.

    II–V–I seed in C

    Dm7 → G7 → Cmaj7. Invent four quarters per bar using only scale tones + approaches. Check your line against chord tones on the hub.

    G|--------------------
    D|--------------2-3-4-
    A|------0-2-3-5-------
    E|-1-3----------------|  example skeleton — rewrite it

    That skeleton is a teaching shape, not a required lick. Revoice it every session.

    Walking ideas in rock / metal

    Not every metal tune wants jazz quarters — but walking skills transfer:

    • Half-time root motion with approaching chromatics between power-chord roots.
    • Descending approaches into a gallop section’s downbeat.
    • Keep metal tone; borrow only the voice-leading logic.

    Common faults

    • Scale runs that ignore changes — chord tones on strong beats missing.
    • Always root on 1, always fifth on 3 — predictable; vary after it is solid.
    • Rushing quarters — walking must be hypnotically even.

    More seeds (original)

    Blues-ish walk outline in A (one chorus idea — invent rhythm of harmony yourself):

    G|----------------
    D|----------------
    A|-----0-1-2------
    E|-0-3-------3-2-0|  rewrite over A7–D7–E7 later

    The three approach notes in the lab

    All three sit on beat 4 and all three are a half step from the next root. What is worth noticing is that none of them belongs to the chord you are leaving — a chromatic approach earns its place by where it goes, not by fitting where it is.

    • C♯ into D. C♯ is not in the key of G and it is certainly not in Am7 — it is the major third of A, so for one beat the ear hears A7 instead of Am7. That reading is not a mistake: A7 is the ordinary way to point at D, and one beat is not long enough for the clash to become a problem.
    • A♭ into G. A half step above the target this time, so the line falls into bar 3 instead of climbing into it. It also happens to be the ♭5 of D7, which is a colour that dominant chords wear well — the note sounds chosen rather than borrowed.
    • B♭ into A. Again from above, and it is what turns three bars into a loop: it hands you back to Am7 so the form can start again without a reset.

    The direction matters more than the spelling. Approaching from below pushes and lifts; approaching from above settles. Choose one for each change instead of taking whichever is nearest your fingers — that choice is most of what makes a walking line sound composed.

    A walking line has to be a line

    The usual failure is not wrong notes. It is twelve right notes that do not go anywhere: each bar gets invented on its own, so the line jumps to wherever the next arpeggio is convenient and the listener hears three separate ideas instead of one moving voice.

    Look at the lab's line as a single shape. It climbs from A up through bar 1, keeps climbing through bar 2 to the high A, then turns and falls all the way through bar 3 back to where it started. One rise, one fall, three bars. That is why it can loop forever without sounding like it restarted.

    Two rules that get you most of the way there:

    • Move by step unless you have a reason. A step or a half step between quarters is the default. Leaps are punctuation, and punctuation stops working if you use it on every beat.
    • Change direction once a phrase, not once a bar. If your line reverses every bar it will pace back and forth in a four-fret box and never get anywhere.

    When you leap, leap to a chord tone — bar 3 of the lab drops a fourth from G to D and gets away with it because D is inside Gmaj7. Leaping to an approach note is how lines start sounding random.

    Voice-leading mini-drill

    Two bars: Am → E. Hit A on beat 1 of bar 1, E on beat 1 of bar 2. Fill other quarters with chord tones and one chromatic approach into E.

    G|----------------
    D|----------------
    A|-0--2--3--2-----
    E|------------0-3-|  example only — rewrite

    Approach into a gallop downbeat

    Bar of walking quarters approaching open E, then bar of open-E gallop. The approach’s last quarter should make the gallop’s first dah feel inevitable.

    What to do when you lose the form

    You will. Walking asks you to invent notes and track your place in a form at the same time, and the inventing is what falls over first. The recovery is a decision you make before it happens, not something to improvise while lost.

    • Drop to roots. One note on beat 1, nothing clever, until you know where you are. A bar of plain roots is invisible to an audience. A bar of guessing is not.
    • Count bars, not beats. Beats take care of themselves once the quarters are even. What you actually lose is which bar of the form you are in, so that is the number to keep in your head.
    • Know the landmarks. In a twelve-bar form, the move to the IV chord in bar 5 and the turnaround in bar 9 are the two places you can rejoin from — see the twelve-bar skeleton. Get to the next landmark, not back to where you fell off.

    Practising the recovery is a real exercise: play the lab's loop, deliberately stop somewhere in bar 2, and rejoin cleanly on beat 1 of bar 3. Being able to come back is worth more than never leaving.

    Chromatic approach gym

    Pick a target root each bar (cycle E–A–D–G open). Always approach from a half-step below on beat 4. Beats 1–3: chord tones or scale tones of your choosing.

    12-bar skeleton (original)

    Use a blues form outline in A: A7 | A7 | A7 | A7 | D7 | D7 | A7 | A7 | E7 | D7 | A7 | E7. Write one original walking pass — no song quotes. Keep quarters even at 72 BPM.

    Name aloud

    While walking, say the chord name on beat 1 of each bar. If you cannot name it, you are not outlining harmony — you are noodling.

    Advanced: name the approach type on beat 4 (“half-step below”) before you play it.

    Evenness test

    Walk for 16 bars at 60 BPM. If any quarter rushes, restart the 16. Speed is irrelevant until this is boring.

    Next

    Text twin: walking.md