A#7sus4 chord
A# dominant seventh suspended fourth
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ukulele fretboard
3
5
7
10
The A#7sus4 chord has the formula 1, 4, 5, b7 with notes A#, D#, F, G#
The seventh suspended fourth chord is a variation of the suspended fourth chord, meaning that it does not have a third and sounds open. This chord can be used to prepare for a resolution down toward a third.