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Guitar scale · altered diminished

A Ultralocrian Scale

Mode 7 of Harmonic Minor: Locrian with a doubly flattened 7th (𝄫7). Every note except the root is lowered, and it holds every tone of a diminished 7th chord.

Notes ABbCDbEbFGb
Formula 1 ♭2 ♭3 ♭4 ♭5 ♭6 𝄫7
Steps H W H W W H W+H
Mood Unstable, Dark, Dissonant
Heard in Over dim7 chords, Jazz

Interactive scale diagram

A Ultralocrian Scale · Standard tuning

STR OP 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 E A D G B E

Tap any note to hear it.

A Ultralocrian Scale tab: all 5 positions

Each tab climbs from the low E string to the high e string. Play it up, then back down.

Position 1 · E shape frets 5–9
e|-----------------------------5-6-8-9-|
B|-------------------------6-7---------|
G|-------------------5-6-8-------------|
D|---------------7-8-------------------|
A|---------6-8-9-----------------------|
E|-5-6-8-9-----------------------------|
Position 2 · D shape frets 7–11
e|------------------------------------8-9-11-|
B|------------------------------10-11--------|
G|----------------------8-10-11--------------|
D|------------7-8-10-11----------------------|
A|--------8-9--------------------------------|
E|-8-9-11------------------------------------|
Position 3 · C shape frets 9–13
e|-----------------------------------------9-11-13-|
B|--------------------------------10-11-13---------|
G|--------------------------10-11------------------|
D|-----------------10-11-13------------------------|
A|---------9-12-13---------------------------------|
E|-9-11-13-----------------------------------------|
Position 4 · A shape frets 12–16
e|-------------------------------------------13-14-|
B|----------------------------------13-14-16-------|
G|----------------------------14-15----------------|
D|-------------------13-15-16----------------------|
A|-------12-13-15-16-------------------------------|
E|-13-14-------------------------------------------|
Position 5 · G shape frets 14–18
e|-------------------------------------------14-17-18-|
B|-------------------------------------16-18----------|
G|-------------------------14-15-17-18----------------|
D|-------------------15-16----------------------------|
A|----------15-16-18----------------------------------|
E|-14-17-18-------------------------------------------|

How to play A Ultralocrian on guitar

Find the root first: A is at fret 5 on the low E string and fret 0 on the A string. The blue notes on the diagram are every A on the neck; the gold ones are the rest of the scale's home chord (♭3, ♭5, 𝄫7), the safest notes to land on at the end of a phrase.

Learn it one box at a time. Position 1, the E shape, sits at frets 5–9. Once it's under your fingers, move to position 2 (the D shape) and play the notes the two boxes share, then keep going up the neck. After all five, the scale joins up into one pattern across the whole fretboard.

Degrees

DegreeNote
1 A
♭2 Bb
♭3 C
♭4 Db
♭5 Eb
♭6 F
𝄫7 Gb

Chords in A Ultralocrian

Stack every other note of the scale and you get these seven chords. They are the chords that sound "at home" in A Ultralocrian; tap one to see its shapes.

Degree Chord 7th chord Function
i° Adim Adim7 Tonic
♭ii Bbm Bbm(maj7) Supertonic
♭iii° Cdim Cm7b5 Mediant
♭IV+ Dbaug Dbmaj7#5 Subdominant
♭v Ebm Ebm7 Dominant
♭VI F F7 Submediant
VII Gb Gbmaj7 Leading tone / subtonic

Fretwise · Free on iPhone & Android

Practise A Ultralocrian anywhere, even offline.

This page is a small slice of Fretwise. The app adds practice: exercises that play as tab, a new routine every day, and the tools to tune and keep time. On iPhone, iPad and Android, no sign-up.

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Questions

What notes are in the A Ultralocrian Scale?
The A Ultralocrian Scale has 7 notes: A, Bb, C, Db, Eb, F, Gb.
What chords are in the A Ultralocrian Scale?
The chords of A Ultralocrian are Adim (i°), Bbm (♭ii), Cdim (♭iii°), Dbaug (♭IV+), Ebm (♭v), F (♭VI), Gb (VII).
What is the formula of the ultralocrian scale?
1 ♭2 ♭3 ♭4 ♭5 ♭6 𝄫7, which is the step pattern H W H W W H W+H (W = whole step, H = half step).
Where do I play A Ultralocrian on the guitar?
The root A is at fret 5 on the low E string and fret 0 on the A string. Position 1 (the E shape) covers frets 5–9, and four more positions connect it up the neck.

Ultralocrian Scale in every key

More scales in A