C m7#5 Chord on Octave Mandolin
Play C m7#5 on Octave Mandolin: diagrams, finger positions, intervals, and every voicing up and down the neck for this instrument.
The C m7#5 chord is a minor seventh with a raised fifth, an altered, unstable color. It is built from the notes C, Eb, G#, Bb. This page shows how to play C m7#5 on Octave Mandolin with clear fretboard diagrams and suggested finger positions.
The lowest shape sits at fret 1 and spans 5 frets, with no open courses in it. C falls on the G course. It sounds from C3 up to G#4.
Octave Mandolin 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.