C 7 Chord on Mandolin

Play C 7 on Mandolin: diagrams, finger positions, intervals, and every voicing up and down the neck for this instrument.

C 7 chord diagram, starting at fret 1. Strings low to high: G open, D 2nd fret, A 3rd fret, E 3rd fret.

The C 7 chord is a dominant seventh — a major triad with a flat seventh that pulls strongly toward resolution. It is built from the notes C, E, G, A#. This page shows how to play C 7 on Mandolin with clear fretboard diagrams and suggested finger positions.

The G string ring open in the lowest shape, with the remaining notes fretted at fret 2 over a 2-fret stretch. C falls on the A string. It sounds from G3 up to G5. 2 voicings are charted, the highest starting at fret 5.

Mandolin is strung in four courses of two, each pair tuned in unison, so each stopped note here sounds as two — which is why the shape rings thicker than the same grip on a single-strung instrument.

Browse alternate voicings to find the one that sits best under your fingers, then compare it with the other chord types built on C or explore the same shape in nearby keys. The diagrams list the notes in each voicing so you can connect the shape to the theory behind it.