Question: What American composer who died in 1978 was associated with an American Opera Company located in Jackson, Mississippi?

Related documents: [0]  [DOC] The Mississippi Opera is an American opera company located in Jackson, Mississippi. Founded in 1945, the company presents an annual season of opera consisting of two fully staged opera productions and smaller concerts and workshops open to the public. The company's productions are performed at the Belhaven University Center for the Arts. Composer William Grant Still and soprano Leontyne Price both have associations with the company. [END] 
[1]  [DOC] William Grant Still (May 11, 1895 – December 3, 1978) was an American composer, who composed more than 150 works, including five symphonies and eight operas. [END]  
Answer: William Grant Still
William Grant Still