A Chord Tones — Viola
The root A in every quality, placed along CGDA by finger and position.
The root A in all 62 qualities Fiddle Warrior maps for the Viola — 10 families, from the plain triads a tune leans on out to the colours an arrangement borrows.
Each page names the string, the finger, and the position for every tone, and flags which neighbouring pairs a single bow stroke can sound together.