The main key is C major, and it is in ternary form.

A [I (a: measures 1-8 + a: measures 9-16) + II (b: measures 17-24 + a: measures 25-32) + II (b: measures 33-40 + a: measures 41-48)]

B [ ||: c (measures 49-56) :|| + ||: d (measures 57-72) : ||]

A [I (a: measures 73-80 + a: measures 81-88) + ||: II (b: measures 89-96 + a: measures 97-104)]

Although section A is quite long, this is not due to new developments, but rather to the repetition of sub-section 'a' within its structure, forming a+a+b+a. Here, a bouncy rhythmic feel is characteristic, and the dynamic descent from the high register may represent will-o'-the-wisps. In section B, the first half first modulates to E minor, then partially modulates to A minor, and finally concludes again in E minor. Compared to section A, this section has less movement and features longer, more lyrical phrases.