Vision of Peace, A: No. 3. Only One World for baritone voice solo & SSATBB choir mixed written by Robert Kyr. The format of this sheet music is choral score and it’s published by E.C. Schirmer Publishing. Vision of Peace, A: No. 3. Only One World is part of the following sheet music categories: Martin Luther King Day, 21st Century, Justice/Peace/Social Concerns.