Tchaikovsky was the first Russian composer whose music made a lasting impression internationally. Tchaikovsky wrote some of the most popular concert and theatrical music in the classical repertoire, including the ballets "Swan Lake" and The "Nutcracker", the 1812 "Overture", his "First Piano Concerto", "Violin Concerto", the "Romeo and Juliet Overture-Fantasy", several symphonies, and the opera "Eugene Onegin". Tchaikovsky displayed a wide stylistic and emotional range, from light salon works to grand symphonies.Some of his works, such as the Variations on a Rococo Theme, employ a "Classical" form reminiscent of 18th-century composers such as Mozart (his favorite composer). Other compositions, such as his Little Russian symphony and his opera Vakula the Smith, flirt with musical practices more akin to those of the 'Five', especially in their use of folk song. Other works, such as Tchaikovsky's last three symphonies, employ a personal musical idiom that facilitated intense emotional expression.