George Szell's long reign as Music Director is largely responsible for the orchestra's rise to eminence. He reformed the orchestra in the 1950s, firing a dozen musicians in the process with a dozen more leaving of their own volition. Szell is also credited with giving the orchestra its distinct, European sound. He pushed an ambitious recording schedule with the orchestra, bringing its music to millions worldwide. Szell's influence has continued, even decades after his death.
Cleveland is the smallest city amongst the traditional "Big Five" orchestras; the others are based in Boston, New York, Philadelphia, and Chicago. However, musicians in Cleveland are often treated as local celebrities, and, much like sports heroes elsewhere, fans seek autographs after performances and greet musicians on the street. Clevelanders are proud that their city boasts an orchestra rated on par with or above those in much larger cities. They have even been known to "have airport rallies when the orchestra comes home from tour [and] chant, 'We're the best! We're the best!' and carry placards reading Bravo!'"
In addition to a vast catalog of recordings created with the ensemble's music directors, the orchestra has made many recordings with guest conductors Vladimir Ashkenazy, Oliver Knussen, Kurt Sanderling, Yoel Levi, Riccardo Chailly, Michael Tilson Thomas, and Louis Lane (the orchestra's longtime Associate Conductor).
During the summer months, the orchestra plays at Blossom Music Center in Cuyahoga Falls, Ohio while during the winter months they play at Severance Hall in Cleveland. Until 2005, the Blossom Festival had its own music director. The last person to serve in that capacity was Jahja Ling. After he stepped down from that position, the orchestra eliminated the post, and now has current music director Franz Welser-Möst in charge of the classical music concerts at the Blossom Festival.
The orchestra also has long-term performing relationships in Lucerne, Vienna, New York City, and Miami, and has conducted multi-concert tours on the West Coast off and on since the 1960s.