Cello Concerto No.1 in C major has been lost in aristocratic libraries and libraries for nearly 200 years. Until 196 1 year, poulter, a Czech musician, discovered the handwritten music score of Haydn period in Prague National Library. Later, Feida, the academic director of Haydn College in Cologne, distinguished the score by the watermark on the score paper, further confirming that the score is a highly reliable handwritten score. This piece not only has the elegant musical style of Vienna classical music school, but also has considerable difficulty in playing skills, which can be described as the masterpiece of cello concerto in that period. This song is also the great contribution of Haydn, the father of symphony, to cello art. The whole song is divided into three movements: the first movement, medium board, C major, and 3. Four beats. Concerto sonata mode. However, the sharp contrast between total performance and main performance reflects the trace of repetitive pattern; From the monotonous accompaniment form, we can feel the lingering charm of Baroque. The works that entered the ensemble ended with a beautiful opening at the end of the first theme, which fully demonstrated the transition structure of concerto from baroque reproduction to classical sonata (fragment 1). Adagio in f major, 2. Four beats, three This is a noisy and lyrical movement, played by the chief cello and chord instrument. Music is full of vulgar melody beauty, which shows Haydn's unique skills in melody performance (fragment 2). Allegro in the third movement in c major, 4. Four beats. The sonata form of concerto adopts almost the same structure as the first movement, with a baroque lingering wind. The whole song is different from the Baroque Concerto. The theme is always presented concisely in the ensemble part, and the leading cello part develops the leading singer's skills (fragment 3). 20 1 1- 10-24 8:3 1:37