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D#/Eb Diminished Scale (Half-Whole) for 6-String Bass

Notes: D# E F# G A A# C C# · interactive fretboard

D# Diminished (Half-Whole)

Symmetric scale alternating half and whole steps, used over dominant 7th chords

CGDAEB123456789101112131415C#D#EF#GAA#CC#D#AA#CC#D#EF#GAA#D#EF#GAA#CC#D#EA#CC#D#EF#GAA#CF#GAA#CC#D#EF#GCC#D#EF#GAA#CC#
Root (D#)
Blue Note (♭5)
Scale Notes
Click empty = outside note
Notes:
D#EF#GAA#CC#

About the D#/Eb Diminished Scale (Half-Whole)

The D#/Eb diminished scale is a 8-note scale. Symmetric scale alternating half and whole steps, used over dominant 7th chords. Its notes are D#, E, F#, G, A, A#, C and C#, built from the formula 1 ♭2 ♭3 3 ♭5 5 6 ♭7.

Notes
D# – E – F# – G – A – A# – C – C#
Formula
1 ♭2 ♭3 3 ♭5 5 6 ♭7
Steps
H W H W H W H W (1–2–1–2–1–2–1–2 semitones)
Root
D#/Eb

D#/Eb Diminished Scale (Half-Whole) degrees and intervals

DegreeNoteInterval
1D#Root
♭2EMinor 2nd
♭3F#Minor 3rd
3GMajor 3rd
♭5ATritone (♭5)
5A#Perfect 5th
6CMajor 6th
♭7C#Minor 7th

Where to play the D#/Eb Diminished Scale (Half-Whole) on 6-string bass

Frets 0–12 in standard tuning (B E A D G C), lowest string first. Root notes (D#) are highlighted; the pattern repeats from the 12th fret up.

StringFrets
B01, 2, 4, 5, 7, 8, 10, 11
E10, 2, 3, 5, 6, 8, 9, 11, 12
A10, 1, 3, 4, 6, 7, 9, 10, 12
D21, 2, 4, 5, 7, 8, 10, 11
G20, 2, 3, 5, 6, 8, 9, 11, 12
C30, 1, 3, 4, 6, 7, 9, 10, 12

How to practice the diminished scale

  • Practice the symmetric pattern across strings
  • Use over dominant 7♭9 chords
  • Work on diminished arpeggio patterns within
  • Try jazz fusion-style chromatic lines
  • Practice in minor 3rd transpositions (same notes)

Scales with the same notes as D#/Eb Diminished Scale (Half-Whole)

These scales share every note with the D#/Eb diminished scale but start from a different root, so the same shapes work over different chords.

Diminished scale in other keys

Other scales in D#/Eb

D#/Eb Diminished Scale (Half-Whole) on other instruments