Diminished (H–W) scale on piano

The Diminished (H–W) scale has 8 notes. Below is its degree formula, the notes in each of the twelve keys, and where they sit on the piano — so you can play it rather than only read about it.

Degree formula

1 b2 #2 3 #4 5 6 b7

The notes in all 12 keys

KeyNotesBlack keys
CC Db D# E F# G A BbDb D# F# Bb
C#C# D D## E# F## G# A# BC# G# A#
DD Eb E# F# G# A B CEb F# G#
EbEb Fb F# G A Bb C DbEb F# Bb Db
EE F F## G# A# B C# DG# A# C#
FF Gb G# A B C D EbGb G# Eb
F#F# G G## A# B# C# D# EF# A# C# D#
GG Ab A# B C# D E FAb A# C#
AbAb Bbb B C D Eb F GbAb Eb Gb
AA Bb B# C# D# E F# GBb C# D# F#
BbBb Cb C# D E F G AbBb C# Ab
BB C C## D# E# F# G# AD# F# G#