B minor 13th chord
Bm13 chord for piano with keyboard diagram.
Explanation: The B minor thirteenth is a seven-note chord. For practical reasons the chord is normally played with omitted notes and/or inverted. The chord is often abbreviated as Bm13 (alternatively Bmin13).
Omissions: Bm13(no11): B - D - F# - A - C# - G#.
Theory: The B minor thirteenth chord is constructed by extending the minor eleventh chord with a major thirteenth note.
Notes: B - D - F# - A - C# - E - G#