fuaranScale Mastery
SCALE · ON TRUMPET IN BB

B𝄫 Diminished Half Whole

Octatonic — half-whole-half-whole. Modern jazz over dominant 7th chords; symmetric every minor 3rd.

MEIMIDIHumdrum
Choose a root
Tempo120 bpm

Playback sounds a major 2nd below the written notation — the instrument's concert (sounding) pitch.

Audio source: tonejs-instruments by Nick Brosowsky (MIT)

Engraved by Verovio 6.2.0-43f8060 4 8 title B𝄫 Diminished (Half-Whole) Verovio
Keyboard
B𝄫D𝄫F♭A𝄫B𝄫C𝄫D♭E♭G♭
Related scales
Same scale, other instruments
Same scale, other tonics
Modes built on this tonic
Compare with
Theory reference
Questions
What notes are in the B𝄫 Diminished Half Whole scale?

The B𝄫 Diminished Half Whole scale uses the notes B𝄫, C𝄫, D𝄫, D♭, E♭, F♭, G♭, A𝄫 (one octave; the pattern repeats at higher registers).

What's the Diminished Half Whole scale formula?

The Diminished Half Whole scale follows the interval pattern H W H W H W H W, where W = whole step (2 semitones) and H = half step (1 semitone). Apply that pattern starting on B𝄫 to get the B𝄫 Diminished Half Whole scale.

What chords work over B𝄫 Diminished Half Whole?

Try chord pairings derived from the scale's third, fifth, and seventh degrees as roots — they share the most diatonic notes.

How do I finger B𝄫 Diminished Half Whole on Trumpet in Bb?

On brass, scales train embouchure + valve / slide coordination across the partials. Slow practice with a tuner reveals intonation tendencies (e.g., the 5th partial sharp on trumpet).

When would I use the Diminished Half Whole scale?

Octatonic — half-whole-half-whole. Modern jazz over dominant 7th chords; symmetric every minor 3rd.