1) The document provides instructions for tuning and warming up string instruments in an orchestra or string class. 2) It recommends that basses tune first using the 2nd harmonic, then the concertmaster plays an A note for tuning, and tunes A and D strings together in 5ths. 3) Warm-up exercises include rhythms, finger patterns, bowing techniques like slurred, staccato, spiccato and detache, and scales to prepare players for rehearsal.