A# fifth chord

A#5 chord for piano with keyboard diagram.
Explanation: The A sharp fifth is a two note chord (since no third is included, it is neither a major nor minor chord). The chord is abbreviated A#5.
Theory: The A#5 chord is constructed with a root and a fifth. It is common to also include the first note again one octave up.

A#5

A#5 chord diagram
Notes: A# - F

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A# chord categories

A# A#m A#7 A#m7 A#maj7 A#6 A#m6 A#6/9 A#5 A#9 A#m9 A#maj9 A#11 A#13 A#add A#7-5 A#7+5 A#sus A#dim A#aug