Ab Dominant 13th Sus4
Ab13sus4 · Piano chord
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Ab – Db – Eb – Gb – Bb – F
1 – 4 – 5 – b7 – 9 – 13
A dominant sus chord with the 4th replacing the 3rd, extended by the 9th and 13th.
The Ab13sus4 chord sounds distinctive, with a dominant 13th sus4 character. Its notes are Ab, Db, Eb, Gb, Bb, F.