Bb 13th chord

Bb13 chord for piano presented by keyboard diagrams.
Explanation: The B flat thirteenth is a seven-note chord. Due to practical circumstances, some notes (as a suggestion fifth, ninth, and eleventh) are omitted and the chord is played inverted. The chord is often abbreviated as Bb13.
Omissions: Bb13(no3): Bb - F - Ab - C - Eb - G; Bb13(no5): Bb - D - Ab - C - Eb - G.
Theory: The Bb thirteenth chord is constructed by adding a third to an eleventh chord.


Bb13 chord diagram
Notes: Bb - D - F - Ab - C - Eb - G

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Bb13 inverted

Bb13 chord diagram
One of many possible inversions (with the 5th and the 11th omitted)

Bb chord categories

Bb Bbm Bb7 Bbm7 Bbmaj7 BbmM7 Bb6 Bbm6 Bb6/9 Bb5 Bb9 Bbm9 Bbmaj9 Bb11 Bbm11 Bbmaj11 Bb13 Bbm13 Bbmaj13 Bbadd Bb7-5 Bb7+5 Bbsus Bbdim Bbdim7 Bbm7b5 Bbaug Bbaug7