The Columbia Symphony Orchestra was an orchestra formed by Columbia Records strictly for the purpose of making recordings. It provided a vehicle for some of Columbia's better known conductors and recording artists to record using only company resources. The musicians in the orchestra were contracted as needed for individual sessions and consisted of free-lance artists and members of either the New York Philharmonic or the Los Angeles Philharmonic, depending on whether the recording was being made in Columbia's East Coast or West Coast studios.
Perhaps the most important recordings the orchestra made were with conductor Bruno Walter, who recorded highly regarded interpretations of Beethoven's, Brahms's, Bruckner's, Mahler's and Mozart's symphonies. With this orchestra, Walter made his only stereo recording of Mahler's Symphony No. 9, which he had conducted at its world premiere.
In 1949, Sir Thomas Beecham made a series of recordings in Columbia Records' 30th Street Studios in New York City with a completely different pickup group, which was also called the Columbia Symphony Orchestra. Later reissued by Sony on CD, the recordings include Dance of the Hours from the opera La Gioconda by Amilcare Ponchielli, the overture to The Merry Wives of Windsor by Otto Nicolai, Carmen Suite by Georges Bizet, and Capriccio Italien by Peter Tchaikovsky.