The Four Seasons
The Four Seasons was a piece of classical music composed by Antonio Vivaldi. 

The Earth probe Friendship 1 was programmed with at least one part of this piece, Primavera: Allegro. 

The music was played when the probe entered the atmosphere of Otrin's homeworld. The natives later adapted the music and incorporated it in a music box as a toy for children. When Joe Carey heard the interpretation of the song, he was still able to identify it as the piece by Vivaldi. ()

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fr:Les quatre saisons
Four Seasons, The