For the first time, an American opera company, not a Broadway production company, had tackled the opera. This production was based on Gershwin's original full score. It did not incorporate the cuts and other changes that Gershwin had made before the New York premiere, nor the ones made for the 1942 Cheryl Crawford revival or the 1959 film version. It allowed the public to take in the operatic whole as first envisioned by the composer. In this light, "Porgy and Bess" was accepted as an opera. Donnie Ray Albert and Robert Mosley alternated performances in the role of Porgy. Clamma Dale and Larry Marshall starred, respectively, as Bess and Sportin' Life. This production won the Houston Grand Opera a Tony Award—the only opera ever to receive one—and a 1978 Grammy Award for Best Opera Recording. The conductor was John DeMain.