Bbm13 Guitar Chord Chart and Fingering
Count from Bb and the Bbm13 chord (Bb minor thirteenth) gives Bb, Db, F, Ab, C, Eb and G: a minor third, a fifth, a minor seventh, a ninth, an eleventh and a thirteenth.
The G is the thirteenth, and it is a natural note, which is what gives the chord a Dorian flavour instead of a natural minor one, where the sixth would be Gb. If the stack feels abstract, another look at ninth chords helps, since the thirteenth only continues the pattern. The Bb Dorian scale contains all seven notes.
Bb minor 13th guitar chord is also written as Bbm13, Bbmin13 or Bb-13.
Notes of the Bb m13 chord:
Chord Structure:
Formula: 1 b3 5 b7 9 11 13
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Created by
Giancarlo is a musician (teaching guitar since 2000), software engineer, AI consultant and published researcher
FAQ
Which notes does Bbm13 contain?
Bbm13 contains Bb, Db, F, Ab, C, Eb and G. The C is the ninth, Eb the eleventh and G the thirteenth.
What is the thirteenth in Bb minor thirteenth?
G, a major sixth up from Bb, counted an octave higher. It is the sixth degree of Bb Dorian.
Is A#m13 the same as Bbm13?
Yes, they sound the same because A# and Bb are one pitch. A#m13 needs E#, B# and the double sharp F##, so Bbm13 is the simpler spelling.
Which scale fits Bbm13?
Bb Dorian: Bb, C, Db, Eb, F, G, Ab. The chord uses all seven notes of it, so nothing falls outside the scale.
How does Bbm13 compare with Bbm11?
Bbm11 is Bb, Db, F, Ab, C and Eb. Bbm13 keeps those six notes and adds the thirteenth, G.
