Minor seventh chord (m7) on ukulele
Cm7 is the minor seventh chord: C, Eb, G and Bb (1–b3–5–b7). On ukulele, the diagram shape is 3 3 3 3, with Eb in the bass.
On the ukulele, the high reentrant G makes every shape light — and with four strings, every note is exposed. In this Cm7 voicing the bass is Eb and the shape sits at fret 3. Its soft nylon strings sound warm and mellow, light enough to float gently over a song.
Cm7 on ukulele: shapes and notes →
Notes and formula of Cm7
Notes in Cm7: C – Eb – G – BbFormula: 1 – b3 – 5 – b7In 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
In pop and MPB it is the most common 'support' minor chord — the one that holds the harmony together without calling attention to itself. A classic example is Dm7Dm7Dm7Dm7 calling for G7G7G7G7 in the key of C, that is, setting the stage for the music to return to its main chord.
See also
Part of the Sevenths family.