Symphony No. 1 (Mozart) in the finale of his "Jupiter" symphony, No. 41. The four notes, Do, Re, Fa, Mi, make an appearance in several of Mozart's works, including his Symphony No. 33. This theme is stated by the horns in his first symphony. In his book on the Piano Concertos, Cuthbert Girdlestone pointed out the similarity between the opening of this symphony and that of Mozart’s Piano Concerto No. 22 K482, composed some twenty years later. Symphony No. 1 (Mozart) The Symphony No. 1 in E major, K. 16, was written in 1764 by Wolfgang Amadeus Mozart at the age of eight years.
Symphony No. 30 (Haydn) Symphony No. 30 (Haydn) The Symphony No. 30 in C major, Hoboken I/30, is a symphony by Joseph Haydn composed in 1765, at the age of 33. It is nicknamed the Alleluia Symphony because of Haydn's use of a Gregorian Alleluia chant in the opening movement. This use of chant proved he was devout Catholic. The Alleluia chant of the first movement has been confused with the principal melodic line in the finale of Mozart's Symphony No. 41 in C major. Mozart did use this Alleluia chant melody for his Alleluia Canon, K. 533, written shortly after he completed his