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B♭ minor: scale and chords
The B♭ minor scale, its seven chords and the keys that mix with it, with a loop in B♭ minor that plays right here. Move it a semitone, then hum over it.
B♭ minor: five black keys. Mika plays the loop at 123 BPM and leaves the humming to you.Four chords of B♭ minor over drums and bass, 123 BPM.
The B♭ minor scale
B♭ C D♭ E♭ F G♭ A♭
Five flats: B♭ D♭ E♭ G♭ A♭; five black keys on a piano (B♭ D♭ E♭ G♭ A♭). Also written as A♯ minor, with seven sharps. Whole and half steps: W H W W H W W.
Harmonic minor raises the seventh to A: the chord on the fifth degree turns major (F, F7) and pulls back to B♭.
In Hz, from the keynote in octave 4: B♭4 466.2 · C5 523.3 · D♭5 554.4 · E♭5 622.3 · F5 698.5 · G♭5 740.0 · A♭5 830.6
The chords in B♭ minor
Tap a chord to hear it.
| Degree | Chord | Notes | Seventh | Bass, Hz |
|---|---|---|---|---|
| i | B♭ D♭ F | B♭m7 | B♭2 116.5 | |
| ii° | C E♭ G♭ | Cm7♭5 | C2 65.4 | |
| III | D♭ F A♭ | D♭maj7 | D♭2 69.3 | |
| iv | E♭ G♭ B♭ | E♭m7 | E♭2 77.8 | |
| v | F A♭ C | Fm7 | F2 87.3 | |
| VI | G♭ B♭ D♭ | G♭maj7 | G♭2 92.5 | |
| VII | A♭ C E♭ | A♭7 | A♭2 103.8 |
The loop plays i–VI–III–VII: B♭m G♭ D♭ A♭.
Keys that mix with B♭ minor
On the Camelot wheel B♭ minor is 3A (Open Key 8m). Tracks in these keys mix without a clash:
- 3B D♭ major relative major, the same seven notes
- 2A E♭ minor one step down
- 4A F minor one step up
- 5A C minor two steps up, the energy boost
Same keynote, the other mode: B♭ major (6B), three notes apart.
Where B♭ minor sits
| Open strings | In B♭ minor | Keynote on an open string |
|---|---|---|
| Guitar E A D G B E | 0 of 6 | – |
| Bass E A D G | 0 of 4 | – |
| Violin G D A E | 0 of 4 | – |
| Viola C G D A | 1 of 4 | – |
| Cello C G D A | 1 of 4 | – |
| Ukulele G C E A | 1 of 4 | – |
Choir parts (soprano C4–G5, alto G3–D5, tenor C3–G4, bass F2–D4, where two part-writing guides agree): B♭3–B♭4 fits the alto part; B♭2–B♭3 fits the bass part; no whole B♭-to-B♭ octave fits the soprano or tenor parts. Find your own range.
As a sub or an 808, the keynote is B♭1 at 58.3 Hz, or B♭2 at 116.5 Hz an octave up. Tune an 808 to B♭.
What plays
Drums, an organ bass and a pluck, the Brumm app's own sounds, four bars at 123 BPM, one chord per bar. The arrows move bass and chords a semitone; the drums stay.
Then hum over it
The hum button opens Brumm with a short line in the key over a beat. Hum yours and it becomes an instrument. No account, no upload.
Sources
Scales and chords: Open Music Theory, musictheory.net. Camelot, Open Key: Mixed In Key, Mixgraph. Open strings: Wikipedia. Choir parts: Open Music Theory, Geneseo. Hz: A4 = 440 Hz, ISO 16.
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