Mozart’s utterly delightful Piano Concerto No.21 was written in 1785. The great composer premiered the piece himself before treating the audience to some of his famous improvisations. The second movement Andante is probably the most famous section of the piece.
Symphony No. 40 in G minor, KV. 550 was written by Wolfgang Amadeus Mozart in 1788. It is sometimes referred to as the "Great G minor symphony", to distinguish it from the "Little G minor symphony", No. 25. The two are the only extant minor key symphonies Mozart wrote.
The form of the Overture to The Magic Flute is the classic three section sonata form structure: a first section called exposition that presents 2 themes; a middle development section where the themes are varied and developed; and a final recapitulation section that re-states the main themes.