Clarence Fountain, the group's lead singer, told Rollingstone.com that he was "grateful to the Lord that he let us have George as long as we did."
"He and I grew up together and sang together from little boys to old men," Fountain said. "George was a great singer. He could sing any part in a song."
The Blind Boys of Alabama formed in 1937 as the Happy Jubilee Singers. Like Scott and Fountain, the other three members were students at the Talladega Institute for the Deaf and Blind.
The 2000 movie "O Brother Where Art Thou," which used the Blind Boys on its sound track, revived interest in the group's music more than 50 years after their first hit, "I can see everybody's mother but mine."
Scott stopped singing with the group last year because of his declining health.