Bbmaj13 chord
The B-flat major thirteenth chord (abbreviated "Bbmaj13 chord") is a seven-note chord consisting of the notes B♭, D, F, A, C, E♭, and G. The chord is formed by adding a thirteenth to a B-flat major eleventh chord.
In practice, the fifth (F) and eleventh (E♭) are often omitted from the Bbmaj13 chord to avoid a very dissonant sound, and because it's not always possible to play all notes simultaneously.
Name
B-flat major thirteenth chord
Notes
B♭ D F A C E♭ G
Intervals
1 3 5 7 9 11 13
Chord symbol
B♭maj13
Alternative symbols
B♭▵13 B♭ma13 B♭MA13 B♭M13
Type
heptad (seven-note chord)