Bmaj13 chord

The B major thirteenth chord (abbreviated "Bmaj13 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 major eleventh chord.

In practice, the fifth (F♯) and eleventh (E) are often omitted from the Bmaj13 chord to avoid a very dissonant sound, and because it's not always possible to play all notes simultaneously.