The Roberta Martin Singers helped to lay the foundation for modern Gospel music between the late '30s and 1969. One of the first mixed male and female gospel choirs, the Roberta Martin Singers were known for their forsaking of traditional gospel harmony in favor of distinct, individual voices. Their lengthy list of hits includes such classic tunes as "He Knows Just How Much We Can Bear," "Try Jesus, He Satisfies," "I'm Just Waiting on the Lord," and "God Is Still on the Throne." The Roberta Martin Singers represented the vision of pianist and contralto-voiced singer Roberta Ma...