What B♭mM7 is built from
Counting up in semitones from B♭:
| Note | Interval | Semitones from root |
|---|---|---|
| B♭ | root | 0 |
| D♭ | minor third | 3 |
| F | perfect fifth | 7 |
| A | major seventh | 11 |
Move all four of those the same distance and you get the same chord on another root — that is what the minor-major seventh formula 0 – 3 – 7 – 11 means.
How to play B♭mM7
Leave the low E string out. Lay your first finger flat across fret 1 and let the other fingers take the notes above it. Nothing is higher than fret 3, so it sits in first position.
All four strings are played. The A string rings open. Nothing is higher than fret 3, so it sits in first position.
Play B♭, D♭, F and A together. That is two white keys and two black.
Numbers in the grids are frets. Where a number is printed beside a grid, that is the fret the top row stands for; otherwise the thick bar at the top is the nut. A circle above a string means play it open, a cross means leave it out.
Guitar, string by string
| Guitar string | Stopped at | Sounds |
|---|---|---|
| low E | not played | — |
| A | fret 1 | B♭ |
| D | fret 3 | F |
| G | fret 2 | A |
| B | fret 2 | D♭ |
| top E | fret 1 | F |
Ukulele, string by string
| Ukulele string | Stopped at | Sounds |
|---|---|---|
| G | fret 3 | B♭ |
| C | fret 1 | D♭ |
| E | fret 1 | F |
| A | open | A |
B♭mM7 on the stave
The same four notes written on a treble stave, spelled the way a minor-major seventh is spelled — one letter for every other step, with whichever accidental reaches the pitch. That is why it reads B♭, D♭, F and A, and not the same sounds written some other way.
Which keys B♭mM7 belongs to
No major scale contains all four of these notes. It does sit inside the harmonic minor scale, which is where it is usually met:
- B♭ harmonic minor, on degree i(♮7)
Other chords on B♭
Same root, different notes above it.
Chords straight off a recording
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