Wolfgang Amadeus Mozart wrote Symphony No. 30 in D major, K. 202/186b[1] in Salzburg, completing it on 5 May 1774.
The work is scored for two oboes, two horns and two trumpets in D (silent in the Andantino and Trio), timpani and strings, but the timpani part has been lost.[2] There has been at least one attempt to reconstruct the timpani part.[3]
The work is in 4 movements:
The first movement is in sonata form and opens with a falling, dotted fanfare motif.[4] A transitional section follows which contains a dialogue between violins and bass alternating between loud and soft dynamics and ending with a trill. The second theme a group of the sonata-form structure contains two sections. The first is a ländler scored for two violins against bass while the second is a minuet for the tutti featuring trills on almost every beat.[4] The expositional coda returns to the ländler style. The development focuses on the minuet style with the phrase-lengths elongated. Following the recapitulation, the movement coda returns to this minuet and regularizes its phrase lengths before the final cadence.[4]
In the trio of the minuet, the first violin is syncopated an eighth note ahead of the accompaniment.[4]
The finale starts with a falling dotted fanfare motif similar to the one that starts the opening movement. The answering phrase and the movement's second theme have a contradanse character.[4]