F#maj11 chord

The F-sharp major eleventh chord (abbreviated F#maj11 chord) is a six-note chord consisting of the notes F♯, A♯, C♯, E♯, G♯, and B. The chord is formed by adding an eleventh to the F-sharp major ninth chord.

In practice, the fifth (C♯) is often omitted from the F#maj11 chord to avoid a very dissonant sound, and because it's not always possible to play all notes simultaneously.