G♭ Half-Whole Diminished Scale Notes
| Degree | Name | Note | Interval |
|---|---|---|---|
| 1 | Root | G♭ | P1 |
| ♭2 | Minor 2nd | A♭♭ | m2 |
| ♭3 | Minor 3rd | B♭♭ | m3 |
| 3 | Major 3rd | B♭ | M3 |
| ♭5 | Diminished 5th | D♭♭ | d5 |
| 5 | Perfect 5th | D♭ | P5 |
| 6 | Major 6th | E♭ | M6 |
| ♭7 | Minor 7th | F♭ | m7 |
| 8 | Octave | G♭ | P8 |
How to Play the G♭ Half-Whole Diminished Scale
Practice the G♭ Half-Whole Diminished Scale hands separately at a slow, steady tempo before putting them together. Aim for even rhythm and a relaxed wrist. The goal is a smooth, connected line where every note sounds the same length and volume. Once both hands feel comfortable on their own, layer them at the same slow tempo and only speed up when the joined version is clean.
Right Hand (RH)
Place your right hand over the keys with the thumb on the root. Use the fingering: 1-2-3-4-1-2-3-4-5 (1 = thumb, 2 = index, 3 = middle, 4 = ring, 5 = pinky).
Right hand: thumb (1) on Gb, index (2) on Abb, middle (3) on Bbb, ring (4) on Bb, then tuck the thumb (1) under to Dbb, index (2) on Db, middle (3) on Eb, ring (4) on Fb, pinky (5) on Gb.
| Step | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
|---|---|---|---|---|---|---|---|---|---|
| Note | Gb | Abb | Bbb | Bb | Dbb | Db | Eb | Fb | Gb |
| Finger | 1 | 2 | 3 | 4 | 1 | 2 | 3 | 4 | 5 |
Watch for the thumb tuck: the thumb (1) passes under your fingers at note 5 (Dbb). Keep your wrist level and quiet. Only the thumb moves under, the hand stays in place above the keys.
Left Hand (LH)
For the left hand, start with your pinky on the root. Use the fingering: 5-4-3-2-1-4-3-2-1
Left hand: pinky (5) on Gb, ring (4) on Abb, middle (3) on Bbb, index (2) on Bb, thumb (1) on Dbb, then cross the ring (4) over to Db, middle (3) on Eb, index (2) on Fb, thumb (1) on Gb.
| Step | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
|---|---|---|---|---|---|---|---|---|---|
| Note | Gb | Abb | Bbb | Bb | Dbb | Db | Eb | Fb | Gb |
| Finger | 5 | 4 | 3 | 2 | 1 | 4 | 3 | 2 | 1 |
Watch for the crossover: a long finger (3 or 4) crosses over the thumb at note 6 (Db). Lift the long finger over cleanly without disturbing the thumb. Descending the scale, the thumb will pass under at the same spots in reverse.
Reading the G♭ spelling
Written from G♭, this spelling carries 5 flats (G♭, B♭, D♭, E♭, and F♭), double accidentals (A♭♭, B♭♭, and D♭♭), leaving 0 of its 8 tones on plain letter names.
Enharmonically this is the F♯ scale respelled. The F♯ page spells the same keys with F♯, A♯, and C♯, where this page reads G♭, B♭, and D♭ instead, which is the version flat-key charts print. Compare the F♯ Half-Whole Diminished Scale side by side.
Because the pattern repeats every three semitones, the C, D♯, E♭, F♯, and A half-whole diminished scales draw on the same collection of piano keys; what changes on this page is which tone is treated as the root and how the letters are spelled from G♭.