Bbsus4 chord with Bb Mixolydian scale

Pairing the Bbsus4 chord (Sus4) with the Bb Mixolydian scale: formulas, fretboard voicings and the practical context for soloing, improvisation and songwriting.

Bbsus4 chord formula

Interval formula: 1 4 5. A triad with a 4th in place of the 3rd. Neither major nor minor — a tense, open sound that wants to fall to the 3rd.

Bb Mixolydian scale formula

Formula: 1 2 3 4 5 6 b7. Classification: modal.

Fretboard voicings for Bbsus4

Curated Bbsus4 shapes that sit naturally inside the Bb Mixolydian scale.

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Bbsus4 — A shape, frets 0–5
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Bbsus4 — G shape, frets 2–7
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Bbsus4 — E shape, frets 5–9
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Bbsus4 — D shape, frets 7–12
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Bbsus4 — C shape, frets 9–14

Other scales for Bbsus4

Compare how the same chord behaves over other compatible modes.

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