Violin where a stopped note sounds a unison or octave with another (open) string, causing it to resonate sympathetically. Students often use these ringing tones to check the intonation of the stopped note by seeing if it is harmonious with the open string. For example, when playing the stopped pitch "A" on the G string, the violinist could play the open D string at the same time, to check the intonation of the stopped "A". If the "A" is in tune, the "A" and the open D string should produce a harmonious perfect fourth. Violins are tuned in perfect fifths, like
Tabula Rasa (Pärt) "A," until in mm. 6, when the pattern reverses, and again the instrument sections are phased in, displaced by a half measure, but this time beginning with the lowest instrument pair (cello and contrabass). The string orchestra’s phasing pattern is reflected in the solo violin parts. When the orchestra is phasing in each part from highest pitch range to lowest, the solo violin plays an eighth note melody, when the solo bass line is played, the solo parts switch and play triplets, and when the chamber orchestra reverses the pattern and phase in again from the lowest pitch range to