This piece of music is a model of instrumental serenade in the middle of18th century. Mozart was completed in Vienna on August 24th, 1787, and was named after the most fashionable German term Eine Kleine Nachtmusik. Originally a string ensemble, it was later adapted into a string quintet and a string quartet, especially the string quartet, which is the most popular one among more than ten suites serenaded by Mozart.

The original five movements, the second movement was lost for some reason, so there are only four movements.

The first movement, Allegro in G major, in 4/4 beats, is a complete sonata. The first theme comes straight to the point, the rhythm is bright and smooth, the octave vibrato is short and gorgeous, forming a cheerful melody, full of distinct emotional color and youthful atmosphere; Followed by a light dance-like melody (1 paragraph).

The second movement, Andante, C major, 2/2 beat, lyrical and romantic. At the beginning of the music, the band played a simple and beautiful theme, with a gentle and quiet melody, like a canoe, full of endless feelings (fragment 2).

The third movement, Allegro, G major, 3/4 time, minuet. The theme is clear in rhythm, smooth in melody and full of youthful vitality (fragment 3).

The fourth movement, Rondo in G major, Allegro, in 4/4 beat, is a Venetian pop song with beautiful melody in Ming Che, full of carefree feelings and symbolizing happy and perfect love (fragment 4). It appears five times in this movement, and the tonality changes every time. Finally, the theme repeats, ending the whole song.