Progressions in G# — Octave Mandolin
Every chord the key of G# owns, as GDAE shapes ready to back a tune.
G# major harmonizes to G# – A#m – Cm – C# – D# – Fm – G°; G# minor to G#m – A#° – B – C#m – D#m – E – F#. Each chord links to its Octave Mandolin shapes, so backing a tune in G# starts here and ends under your fingers.
Run the changes that carry the repertoire — I–IV–V for the dance tunes, i–VII–VI where the airs go modal — until moving between shapes stops costing thought.