F#13 chord

The F-sharp dominant thirteenth chord (abbreviated F#13 chord) is a seven-note chord consisting of the notes F♯, A♯, C♯, E, G♯, B, and D♯. The chord is formed by adding a thirteenth to the F-sharp dominant eleventh chord.

In practice, the fifth (C♯) and eleventh (B) are often omitted from the F#13 chord to avoid a very dissonant sound, and because it's not always possible to play all notes simultaneously.