Violin Concerto no. 1 in B-flat major, K. 207

The autograph is dated April 1775 in Salzburg, but paper and handwriting studies place the concerto two years earlier, in 1773, which would make it Mozart's first work for violin and orchestra by some margin. He was concertmaster of the archbishop's orchestra and could play the solo part himself. The finale was later replaced, for a performance now unknown, by the separate Rondo K. 269, which is still sometimes substituted. It is the least often played of the five, its writing closer to the Salzburg divertimento than to the concertos that followed it.