The Piano Sonata No. 16 in C major, K. 545, by Wolfgang Amadeus Mozart was described by Mozart himself in his own thematic catalogue as “for beginners,” and it is sometimes known by the nickname Sonata facile or Sonata semplice.
The piece is associated with children and growing up, and can be used as a backing track for children’s videos, family videos and slideshows, or to give a playful, childish mood to a character in a film. https://www.youtube.com/watch?v=S2cL5nw_0jc
The piece has also been used in the following movies: The Tree of Life (2011), Take (2008), X-Men 2 (2003), Loser (2000), Groundhog Day (1993), MASH TV Series (1983), Doktor Faustus (1982), Looney, Looney, Looney Bugs Bunny Movie (1981)
Sample Video: https://www.youtube.com/watch?v=rLygvgB5iTgVideo Credit: “Sparking Notes – 8 Transitions” by VideoMagus http://videohive.net/item/sparking-notes-8-transitions/3086499?ref=isakukageyama