According to Wikipedia:

The Symphony No. 7 in A major, Op. 92, is a symphony in four movements composed by Ludwig van Beethoven between 1811 and 1812, while improving his health in the Bohemian spa town of Teplitz. The work is dedicated to Count Moritz von Fries.

At its premiere at the university in Vienna on 8 December 1813, Beethoven remarked that it was one of his best works. The second movement, "Allegretto", was so popular that audiences demanded an encore.[1] The "Allegretto" is frequently performed separately to this day.