Musical tuning to the fundamental note of the unstopped, full string. The strings of a guitar are normally tuned to fourths (excepting the G and B strings in standard tuning, which are tuned to a third), as are the strings of the bass guitar and double bass. Violin, viola, and cello strings are tuned to fifths. However, non-standard tunings (called scordatura) exist to change the sound of the instrument or create other playing options. To tune an instrument, often only one reference pitch is given. This reference is used to tune one string, to which the other strings are tuned in the
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