He sang classical , folk and spiritual pieces as lead soloist in numerous concerts , both in Chicago and on national tours .
Distinguished singers included David Edmonds , who performed with the choir from 1970 to 1977 .
David Edmonds sang classical , folk and spiritual pieces as lead soloist in numerous concerts , both in Chicago and on national tours .
Distinguished singers included David Edmonds , who performed with the choir from 1970 to 1977 .