b♭ Major
Chords in the key of
The scale’s notes are numbered from 1 to 7. Roman numerals are used to label the basic triad (1-3-5) chords built on each of those notes.
The notes of the B♭ major scale are:
B♭ – C – D – E♭ – F – G – A
| I | ii | iii | IV | V | vi | vii° |
|---|---|---|---|---|---|---|
| B♭ | Cm | Dm | E♭ | F | Gm | Adim |
| B flat major | C minor | D minor | E flat major | F major | G minor | A diminished |
| B♭ - D - F | C - E♭ - G | D - F - A | E♭ - G - B♭ | F - A - C | G - B♭ - D | A - C - E♭ |
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That’s the diatonic set. If you stay strictly inside the key, these are your friends. The pattern of naming chords for every major key is:
Major, Minor, Minor, Major, Major, Minor, Diminished. Numerals in UPPERCASE (I, IV, V) denote major chords, and numerals in lowercase (ii, iii, vi) denote minor chords.
B♭ Major: Extended Chords
B♭maj7
B♭ - D - F - A
F7
F - A - C - E♭
Gm7
G - B♭ - D - F
E♭maj7
E♭ - G - B♭ - D
Cm7
C - E♭ - G - B♭
A♭
A♭ - C - E♭
B♭ Major’s Parallel Minor
Changing between parallel keys can feel bold, emotional, and cinematic.
These notes come from the B♭ natural minor scale (D♭, G♭, and A♭), and are commonly borrowed individually to colour chords in B♭ major:
| ♭III | iv | v | ♭VI | ♭VII |
|---|---|---|---|---|
| D♭ | E♭m | Fm | G♭ | A♭ |
| D♭ major | E♭ minor | F minor | G♭ major | A♭ major |
| D♭ - F - A♭ | E♭ - G♭ - B♭ | F - A♭ - C | G♭ - B♭ - D♭ | A♭ - C - E♭ |
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