C# add9 Chord on Puerto Rican Cuatro
Play C# add9 on Puerto Rican Cuatro: diagrams, finger positions, intervals, and every voicing up and down the neck for this instrument.
The C# add9 chord is an added-ninth chord that layers in a ninth without the seventh for an open, modern sound. It is built from the notes C#, D#, F, G#. This page shows how to play C# add9 on Puerto Rican Cuatro with clear fretboard diagrams and suggested finger positions.
There is no open-string version on Puerto Rican Cuatro: the lowest shape barres fret 1 and covers 4 frets. C# falls on the B string. It sounds from F3 up to G#4.
Puerto Rican Cuatro is strung in five courses of two, the lower two paired an octave apart, 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.