Symphony No. 39 (Michael Haydn) 41 in C major (also written in 1788). The last movement is a vigorous fugato, something else this work has in common with Mozart's Symphony No. 41 and Haydn's own Symphony No. 28 in C major which Mozart certainly studied. Unlike the "Jupiter" Symphony, in this symphony the fugal theme is at its first instance accompanied by its usual countersubject: Robbins Landon speculates that Mozart also studied Haydn's No. 39 before writing his No. 41, since he "often requested his father Leopold to send him the latest fugue that Haydn had written." (Robbins Landon, 1967) Whether Mozart knew Haydn's later
Symphony No. 64 (Haydn) Symphony No. 64 (Haydn) The Symphony No. 64 in A major (Hoboken I/64) is a symphony by Joseph Haydn dated between 1773 and 1775. The likely date of composition puts it at the tail end of the "Sturm und Drang" period that produced masterpieces such as symphonies 44 to 48. It is often known by the nickname Tempora mutantur. The nickname is Haydn's own. On the orchestra parts prepared for this symphony at Esterházy, he placed the heading "Tempora mutantur, et.". The full version of this quote is "Tempora mutantur, nos et mutamur in illis," and it is a traditional