The Rake's Progress
The Rake’s Progress is the only full-length opera that Stravinsky wrote.  It is unusual because it was not written in the modern way of most music of the 1950s.  Because the story of the opera is set in the 18th century,  the style of the music is deliberately like music from that period.  It is divided into arias and recitative (big songs which are linked with simpler music which tells the story).