Schubert composed the Piano Sonata in A-Major, D664 when he was on a two-month vacation at a place in Austria called Steyer. It was composed for the daughter, Josephine, of his host there.
This is music which depicts the loveliness of Nature in Steyer, and undoubtedly the loveliness of Josephine.
Here is Sviatoslav Richter to play this Sonata for you: