String pedagogue Barbara Barber has developed an intonation system that teaches string players the layout of the fingerboard and takes the guesswork out of playing in tune. In String Class Fingerboard Geography, Finger Marches" establish the 1st finger "home base" note on all four strings. Finger Pattern Exercises---four basic color-coded patterns for violin, viola, cello, and bass---develop quick, precise action in the left hand without the need...