The A#9 chord is formed by the intervals root (1), major third (3), perfect fifth (5), minor seventh (b7) and major ninth (9). In this chord thus sound the notes A♯, C𝄪, E♯, G♯ and B♯. To hear the A♯9, click on the chord diagrams. To highlight some chords with a yellow background, click on top of the diagram. This selection can be saved by copying the link from the browser.