F#13b9 chord
F#13b9 chord for piano presented by keyboard diagrams.
Explanation: The F#13b9 alter the F#13 by the change of one note. The F sharp thirteenth flat ninth is a seven-note chord, but due to practical circumstances, one or more notes (the fifth primarily) are omitted. The chord name can also be written as F#13(b9) or F#13-9.
Theory: Compared to F#13 the ninth tone in the chord is flattenedThe tone is one half step lower.
F#13b9

Notes: F# - A# - C# - E - G - B - D#
F13b9 chord ‹ Previous • Next › G13b9 chord
F#13#11 polychord
Explanation: The image below shows a polychord version of the F#13#11. The chord is played in two parts with both hands.

Polychord F#7 (LH), G# (RH)