C# m7#5 Chord on Octave Mandolin
How to play the C# m7#5 chord on Octave Mandolin: fretboard diagrams, finger positions, the notes that build it, and alternate voicings up the neck.
The C# m7#5 chord is a minor seventh with a raised fifth, an altered, unstable color. It is built from the notes C#, E, A, B. This page shows how to play C# m7#5 on Octave Mandolin with clear fretboard diagrams and suggested finger positions.
The shape nearest the nut leaves the A and E strings open and takes the rest at fret 6, reaching across 4 frets. C# falls on the G string. It sounds from C#3 up to E4.
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.