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Chord & Fret

C7(b13) on ukulele

C7(b13) on ukulele — frets 1 0 0 1C7(b13)12AbCEBb
Frets: 1 0 0 1

On the ukulele, the high reentrant G makes every shape light — and with four strings, every note is exposed. In this position the bass is C and the shape sits at fret 1, ringing 2 open strings. Because this instrument has fewer strings than C7(b13) has notes, one note — usually the fifth — is normally dropped without losing the chord's identity. Its soft nylon strings sound warm and mellow, light enough to float gently over a song.

Notes on C: C – E – G – Bb – AbFormula: 1 – 3 – 5 – b7 – b13

In the formula, the numbers count steps of the major scale starting from the note that names the chord; "b" lowers a half step, "#" raises one — and a slash names the bass note.

Where to use it: A dark resolution, especially to a minor chord.

Every region of the neck hides more shapes of C7(b13) on ukulele. In Chord & Fret, you check it note by note, playing any shape as an arpeggio; open every variation on the neck, grouped by bass note; and change the tuning — the shape rewrites itself. Start free. Unlock everything with Pro. 100% offline.

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Part of the Altered dominants family.

See the full explanation of C7(b13) →