B♭ Minor 7♯5
Reviewed for accuracy · Last updated July 2026 · Maintained by Justin Evans
A♯ Minor 7♯5
Practice B♭ Minor 7♯5
Reading about it is one thing. Drilling it is what makes it automatic.
Introduction
The B♭ Minor 7♯5 chord is a four-note chord made up of B♭, D♭, F♯, and A♭.
Notes
Key Signature
A chord has no key signature of its own, but the B♭ Minor 7♯5 is the tonic (i) chord of Bb Minor, which shares the signature of its relative major, Db Major — 5 flats (B♭, E♭, A♭, D♭, G♭).
Order of flats
Flats are added in a fixed order — the reverse of the sharp order. Each new flat key adds the next flat on the list.
Mnemonic: Battle Ends And Down Goes Charles’ Father
Chords in the Key of B♭ Minor
These are the triads built on each degree of the B♭ minor scale:
Same Notes, Other Names
The notes B♭ – D♭ – F♯ – A♭ aren’t exclusive to this chord. Depending on which note is the bass and how the chord functions, the same pitches also spell:
B♭ Minor 7♯5 — Frequently Asked Questions
What is the B♭ Minor 7♯5 chord on piano?
Related Tools
References & Further Reading
The note names, intervals, fingering, and harmony on this chord page are grounded in the following sources. Public domain treatises and scores are linked to their full text; primary data reflects piano.org's own interval-derived dataset.
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piano.org(2024)
piano.org chord note dataset — 43 chord types × 18 keys, derived from interval construction rules
Primary data
Spot something that looks off? Use the note form below — corrections are reviewed by hand.
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