Progressions in A# — Cello

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

A# major harmonises to A# – Cm – Dm – D# – F – Gm – A°; A# minor to A#m – C° – C# – D#m – Fm – F# – G#. Each chord links to its tone map on the Cello, so a tune in A# 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 A#, 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.