The Abadd9 chord
The Abadd9 chord is built from Ab, Bb, C, Eb. With notation, piano keyboard, guitar and ukulele shapes.
In notation
Major with an added ninth and no seventh. Wide and open without building tension.
Intervals from the root
Piano
Guitar
Ukulele
Related pages
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See AnotonaEvery note on this page is computed, not typed in — following the rule that also makes F# major spell its seventh degree E#, not F.