A# Altered Guitar Scale
Guitar scale — fretboard diagram
A# Altered Scale — Notes and Intervals
The A# Altered scale is the ultimate dominant scale in jazz. On Guitar, its notes are A#, B, B##, D, E, F#, G#. It contains every possible altered tension, making it sound extremely dissonant and complex. It is used by professional improvisers to create maximum tension over a dominant chord before a satisfying resolution. Commonly used in Jazz, Fusion, Post-Bop, Contemporary. Notable players include John Coltrane, Michael Brecker, Pat Metheny, Chick Corea. Use over 7alt, 7#9, 7b9, 7#5, 7b5 chords. The definitive scale for altered dominant chords that resolve to minor. Play C Altered over C7alt resolving to Fm.
Notes: A#, B, B##, D, E, F#, G#
Intervals: 1P, 2m, 2A, 3M, 4A, 6m, 7m
Degrees: 1 b2 #3 4 #5 b6 b7
Formula: H-W-H-W-W-W-W
Number of notes: 7
Also known as: super locrian, diminished whole tone, pomeroy
How to Play A# Altered on Guitar
Place your index finger at fret 6 on the 6th (low E) to find your A# root note. Use a three-notes-per-string fingering to cover the full scale in one position, or learn the CAGED shapes to navigate the entire fretboard. An alternative starting point is 1st fret on the A string.
The A# Altered scale contains 4 sharps (A#, B##, F#, G#). This scale does not follow a traditional major or minor key signature, so reading from sheet music may require accidentals.
Practice Routine
Begin by playing the A# Altered scale ascending and descending at 80 BPM using a metronome, one note per beat. Once comfortable, practice in thirds (A#-B##, B-D) to build intervallic familiarity. Spend 5 minutes daily on this pattern before increasing tempo by 10 BPM.
Exotic scales like the Altered often work best as a melodic layer over a single root drone on A#. Let the unique intervals speak for themselves without frequent chord changes.
Guitar Tips
Use hybrid picking (pick + fingers) when playing the A# Altered scale on guitar to access wider intervals and string skips that a pick alone cannot handle efficiently.
The A# Altered scale contains 7 notes (A#, B, B##, D, E, F#, G#). Use the interactive fretboard above to explore this scale on Guitar with different tunings and fret ranges.
CAGED Positions & Patterns for A# Altered
The A# Altered scale can be played in 5 CAGED positions across the fretboard, each based on an open chord shape (C, A, G, E, D). As a 7-note scale, it also lends itself to 3-notes-per-string (3NPS) patterns that facilitate legato playing and diagonal shifting. Use the pattern selector above to isolate each position.
Explore A# Altered Further
- Harmonize the A# Altered scale — triads & 7th chords
- Browse chord progressions
- A# Altered on Ukulele
- A# Altered on Bass
- A# Altered on Piano
Explore A# Altered in Other Tunings
- A# Altered in Drop D (E-B-G-D-A-D)
- A# Altered in DADGAD (D-A-G-D-A-D)
- A# Altered in Open G (D-B-G-D-G-D)
- A# Altered in Baritone (B Standard) (B-F#-D-A-E-B)
- A# Altered in 7-string (E-B-G-D-A-E-B)
- A# Altered in 8-string (E-B-G-D-A-E-B-F#)
- A# Altered in Drop C (D-A-F-C-G-C)
- A# Altered in Drop B (C#-G#-E-B-F#-B)
- A# Altered in Open D (D-A-F#-D-A-D)
- A# Altered in Half Step Down (Eb-Bb-Gb-Db-Ab-Eb)
- A# Altered in Open E (E-B-G#-E-B-E)
- A# Altered in Open A (E-C#-A-E-A-E)
- A# Altered in Double Drop D (D-B-G-D-A-D)
- A# Altered in Open C (E-C-G-C-G-C)