Progressions in G — Cello

Every chord the key of G owns, mapped along CGDA by finger and position.

G major harmonises to G – Am – Bm – C – D – Em – F#°; G minor to Gm – A° – A# – Cm – Dm – D# – F. Each chord links to its tone map on the Cello, so a tune in G becomes a short list of places the hand needs to be.

The useful question in a key is which open strings it agrees with. In G, check the chords against the open C and A — a key that leaves an open string ringing under the melody is a key this instrument was built for.