A# 13th chord

A#13 chord for piano presented by keyboard diagrams.
Explanation: The A sharp thirteenth is a seven-note chord. Due to practical circumstances, some notes (as a suggestion fifth, ninth, and eleventh) are omitted and the chord is played inverted, see second diagram. The chord is sometimes played with both hands. The chord is often abbreviated as A#13.
Omissions: A#13(no3): A# - F - G# - C - D# - G; A#13(no5): A# - D - G# - C - D# - G.
Theory: The A# thirteenth chord is constructed by adding a third to an eleventh chord.

A#13

A#13 chord diagram
Notes: A# - D - F - G# - C - D# - G / A# - C## - E# - G# - B# - D# - F##

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A#13 inverted

A#13 chord diagram
One of many possible inversions

A# chord categories

A# A#m A#7 A#m7 A#maj7 A#mM7 A#6 A#m6 A#6/9 A#5 A#9 A#m9 A#maj9 A#11 A#m11 A#13 A#m13 A#maj13 A#add A#7-5 A#7+5 A#sus A#dim A#dim7 A#m7b5 A#aug A#aug7