Mozart's Piano Concerto no. 17 in G Major, K 453

Written for student, Barbara von Ployer.
Completed in 1784
1st movement:
Opens like a quiet march with a dotted rhythm, reminiscent of Mozart's opera music.
Wind instruments! (principal thematic material)
Double exposition (D Major, dominant key, for piano's exposition)
Cadenza towards end of movement: explored themes already heard; Mozart wrote out cadenza himself, a practice not fully established until Romantic era.
Alternate piano and orchestra

2nd movement:
Andante
3'4
C major
combination of rondo and theme and variation form
Like an extended aria (phrases paired in questions and answers)