F
F
F#
G
G#
A
D#
C
C#
D
D#
E
G#
G#
A
A#
B
C
D#
D#
E
F
F#
G
A#
A#
B
C
C#
D
X
F
F#
G
G#
A
1
2
3
4
5
A#7sus4
Sus4Also known as: Bb7sus4
About this chord
A#7sus4 has a tense, suspended glow—open, unresolved, and slightly gritty—delivering a bold, anticipatory mood before release. Heard in jazz, blues turnarounds, funk vamps, and rock pop hooks, it drives groove-heavy progressions. Its percussive, modal edge can hint at Afro-Cuban or Latin flavors when rhythmically accented. Technically it’s a dominant sus chord (A#–D#–E#–G#), often played as a barre or movable shape; beginner-to-intermediate friendly. Commonly used for dominant function suspense, it delays the third, creating push-pull tension that resolves to A#7 or D#/E# harmony; also searched as Bb7sus4.
Intervals
145♭7
Tuning
StandardE B G D A E
Position Frets 1 - 5
Tags
jazzbluesrockpopfunk