Pyotr Ilyich Tchaikovsky was a Russian composer of the Romantic era. His wide-ranging output includes symphonies, operas, ballets, instrumental, chamber music and songs. He wrote some of the most popular concert and theatrical music in the classical repertoire, including the ballets Swan Lake, The Sleeping Beauty and The Nutcracker, the 1812 Overture, his First Piano Concerto, his last three numbered symphonies, and the opera Eugene Onegin.(Source: Wikipedia)