Symphony No. 17 in G major, K. 129, is the second of three symphonies completed by Wolfgang Amadeus Mozart in May 1772, when he was 16 years old, but some of its sections may have been written earlier.[1]
^Mozart, Wolfgang Amadeus (2005). Die Sinfonien III. Translated by Robinson, J. Branford. Kassel: Bärenreiter-Verlag. p. X. ISMN M-006-20466-3