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Guitar scale · super Locrian

F# Altered Scale

7th mode of Melodic Minor. The ultimate scale for altered dominant chords in jazz solos.

Notes F#GAA#CDE
Formula 1 ♭9 ♯9 3 ♭5 ♯5 ♭7
Steps H W H W W W W
Mood Tense, Highly Altered, Modern Jazz
Heard in Jazz Solos over 7alt Chords, Bebop

Interactive scale diagram

F# Altered 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.

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

How to play F# Altered on guitar

Find the root first: F# is at fret 2 on the low E string and fret 9 on the A string. The blue notes on the diagram are every F# on the neck; the gold ones are the rest of the scale's home chord (3, ♭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 2–6. 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 F#
♭9 G
♯9 A
3 A#
♭5 C
♯5 D
♭7 E

Chords in F# Altered

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

Degree Chord 7th chord Function
i° F#dim F#m7b5 Tonic
♭ii Gm Gm(maj7) Supertonic
♯iii Am Am7 Mediant
IV+ A#aug A#maj7#5 Subdominant
♭V C C7 Dominant
♯VI D D7 Submediant
♭vii° Edim Em7b5 Leading tone / subtonic

Fretwise · Free on iPhone & Android

Practise F# Altered 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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  • A new Daily 15 routine every day, plus free exercises
  • Maqam & makam between the frets, and the Name the Note quiz

One purchase

  • 282 exercises that play as tab, and routines with a speed trainer
  • Chord & Scale Finder: tap the neck, get the name
  • Theory Lab and the Progression Builder with 51 genre loops
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Questions

What notes are in the F# Altered Scale?
The F# Altered Scale has 7 notes: F#, G, A, A#, C, D, E.
What chords are in the F# Altered Scale?
The chords of F# Altered are F#dim (i°), Gm (♭ii), Am (♯iii), A#aug (IV+), C (♭V), D (♯VI), Edim (♭vii°).
What is the formula of the altered scale?
1 ♭9 ♯9 3 ♭5 ♯5 ♭7, which is the step pattern H W H W W W W (W = whole step, H = half step).
Where do I play F# Altered on the guitar?
The root F# is at fret 2 on the low E string and fret 9 on the A string. Position 1 (the E shape) covers frets 2–6, and four more positions connect it up the neck.

Altered Scale in every key

More scales in F#