Irish bouzouki Gmaj7 chord (ADAD)G major seventh: 2 4 5 5, and 2 more shapes

Frets, low course to high: 2 4 5 5 (from the 2nd fret) · Gmaj7/B

1. Low A course: 2nd fret, index finger, B
2. Low D course: 4th fret, ring finger, F♯
3. High A course: 5th fret, little finger (barre), D
4. High D course: 5th fret, little finger (barre), G

Sounds: B F♯ D G  ·  Gmaj7 is G, B, D, F♯ (1 · 3 · 5 · 7)

Open courses that ring: D is a note of Gmaj7, so it can drone under it.

With a capo: on the 5th fret it’s 0 0 4 4 (frets counted from the capo), an open Dmaj7 shape.

Tuning ADAD: A D A D, low to high.