From lowest to highest pitch, its strings are tuned C G D A.
A sonata for this instrument was the final piece composed by Shostakovich, and is his opus 147. Benjamin Britten composed ten variations on a theme by John Dowland for this solo instrument and string orchestra in his Lachrymae. Schumann wrote Marchenbilder for piano and this instrument, which is also accompanied by string orchestra in Ernest Bloch's Suite 1919 and Suite Hebraique. This instrument represents the title character of a symphony whose third and fourth movements respectively depict a "serenade of an (*) Abruzzi mountaineer to his mistress" and an "orgy of brigands." Paganini commissioned Berlioz to feature this solo instrument in that symphony, Harold in Italy. From lowest to highest pitch, its strings are tuned C G D A. For 10 points, name this string instrument which is slightly bigger than a violin.
A sonata for this instrument was the final piece composed by Shostakovich, and is his opus 147.
{viola}