Haydn was instrumental in creating sonata form. Which piece below, written by one of Haydn's successors, represents this form

Answer 1

One significant piece that represents sonata form by one of Haydn's successors is Ludwig van Beethoven's Piano Sonata No. 14 in C-sharp minor, Op. 27, No. 2, commonly known as the "Moonlight Sonata." The first movement of this sonata exemplifies the use of sonata form, which consists of an exposition, development, and recapitulation, showcasing the classical structures that Haydn helped to develop.