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Chords in Bb Locrian

Bb Locrian is built from the notes Bb, Cb, Db, Eb, Fb, Gb and Ab. Its scale carries 7 flats. Harmonising that scale in thirds gives seven chords — 3 majors, 3 minors and 1 diminished — starting on Bbdim as the iø. The chord on the fifth degree is Fb, a major bV, so Bb Locrian has the leading tone that makes a Fb-to-Bbdim cadence sound final.

Beyond those seven, Bb Locrian commonly borrows Bb (I), Cm (ii), Dm (iii), Eb (IV) and F (V) from the parallel major — the mixture chords that give a progression somewhere unexpected to go.

The seven chords

iøBbdimBb diminished, open position, capo 0x12320bIICbCb major, open position, capo 0x24442biiiDbmDb minor, position 4, capo 04frx46650ivEbmEb minor, open position, capo 0xx1342bVFbFb major, open position, capo 0022100bVIGbGb major, open position, capo 0244322bviiAbmAb minor, position 4, capo 04fr466444

Extended to four notes each, the same seven degrees give Bbm7b5, Cbmaj7, Dbm7, Ebm7, Fbmaj7, Gb7, Abm7.

Borrowed chords

IBbBb major, open position, capo 0x10331iiCmC minor, open position, capo 0x31013iiiDmD minor, open position, capo 0xx0231IVEbEb major, position 4, capo 04frx65046VFF major, open position, capo 0133211viGmG minor, open position, capo 0310033viiøAdimA diminished, open position, capo 0x0121x
Capo

Capo 4 and play Gb Locrian shapes to sound Bb Locrian.

All eight capo positions for Bb Locrian →

Related keys

Open Bb Locrian in the explorer →