The String Quintet No. 2 in C minor, K. 406/516b, was written by Wolfgang Amadeus Mozart in 1787, a transcription of his earlier Serenade No. 12, K. 388, for wind octet. Like all of Mozart's string quintets, it is a "viola quintet" in that it is scored for string quartet and an extra viola (two violins, two violas and cello).
Movements
The work is in standard four movement form:
8 in E-flat major
4 in C minor, with Trio in canone al roverscio in C major
4 in C minor (ending in C major)
References
String Quintet No. 2 (Mozart) Wikipedia(Text) CC BY-SA