C 9 Chord on Mandola
How to play the C 9 chord on Mandola: fretboard diagrams, finger positions, the notes that build it, and alternate voicings up the neck.
The C 9 chord is an extended or altered dominant that stacks ninths, elevenths, thirteenths, or chromatic tensions over a dominant-seventh core. It is built from the notes C, D, E, G, A#. This page shows how to play C 9 on Mandola with clear fretboard diagrams and suggested finger positions.
The C and D strings ring open in the lowest shape, with the remaining notes fretted at fret 3 over a 5-fret stretch. The root is the C string itself. It sounds from C3 up to E5.
Mandola is strung in four courses of two, 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.