Irish bouzouki C chord (GDAD)C major: 0 2 3 2, and 4 more shapes

Frets, low course to high: 0 2 3 2 (open position) · C/G

Sounds: G E C E · C is C, E, G (1 · 3 · 5)

Found in: G major (IV), D mixolydian (♭VII), G mixolydian (IV), D dorian (♭VII), G dorian (IV), A dorian (♭III)

Open courses that ring: G is a note of C, so it can drone under it.

No 3rd: C5 (5 5 3 5) leaves the 3rd out, so it backs C major, mixolydian, dorian and minor tunes alike.

Tuning GDAD: G D A D, low to high.

The app starts on the Irish bouzouki in GDAD, so it opens on these shapes.

More C shapes

G major (IV, a main chord): G – C – G – D (a plain backing for many reels and jigs)
D mixolydian (♭VII, a main chord): D – C – D (the mixolydian sound: D-C-D)
G mixolydian (IV, a main chord): G – C – G – F (reels in D or A mix)
D dorian (♭VII, a main chord): Dm – C – Dm
G dorian (IV, a main chord): Gm – F – C – Gm (the major IV is the dorian colour)
D minor (♭VII, a main chord): Dm – C – B♭ – C