Leanoard Bernstein (1918-1990), was a 20th century American composer.

Bernstein completed Symphonic Dances from West Side Story in 1960.

Aaron Copland (1900-1990), was a 20th century American composer.

Copland completed Symphony No. 3 in 1946.

Ellington (1899-1974), was a 20th century American composer.
Ellington completed The River in 1970.

Pyotr Ilyich Tchaikovsky (1840-1893), was a Russian composer of the romantic era.

Tchaikovsky completed 1812 Overture in 1880.

Giuseppi Verdi (1813-1901) was an Italian composer in the romantic era.

Nabucco was completed in 1841.

Pietro Mascagni (1863-1945), was an Italian composer (primarily opera) of the late romantic era.

Mascagni completed Cavalleria rusticana in 1890.

Paul Hindemith (1895-1963), was a 20th century German composer.

Hindemith completed Symphonic Metamorphosis in 1943.

Richard Wagner (1813-1883), was a German composer of the Romantic era.

Wagner completed Götterdämmerung in 1874.

Richard Wagner (1813-1883), was a German composer of the Romantic era.

Wagner completed Lohengrin in 1848.

Richard Wagner (1813-1883), was a German composer of the Romantic era.

Wagner completed Siegfried in 1871.