Folkways Records

David Meltzer, Tina Meltzer (leadvocalist)

Suddie Griffins (leadvocalist), Emmett Brand (leadvocalist), Wilson Boling (leadvocalist), Verna Ford, Bessie Ford (leadvocalist), Horace Sprott (leadvocalist), Nellie Hastings (leadvocalist), Annie Sprott (leadvocalist), Jake Field (leadvocalist), Eastman Brand (leadvocalist), Arthur Holifield (leadvocalist), Holifield Family (leadvocalist), Brand Family (leadvocalist), Fields Family (leadvocalist), Greene Family (leadvocalist)

Charles W. Dunn

The University Players

Tony Schwartz

Andrew Rowan Summers (leadvocalist)

Alan Mills (leadvocalist)

Robert Emmett (leadvocalist), Charity Bailey (leadvocalist)

Bill Bonyun (leadvocalist)

Gil Slote, Children from New York City, P.S. 24 Brooklyn

Peter Bartok, Béla Bartók (piano), Tibor Serly

W.N. Kellogg

German dance orchestra, Aleksandr Mossolov, Julius Meytuss, John Cage, Edgard Varèse, Henry Cowell, Vladimir Ussachevsky, Otto Luening, Halim El-Dabh, Roger Marin, Frederic Ramsey, Jr., Henry Jacobs

Alan Mills (leadvocalist)

Alan Shepard, Cape Canaveral mission control, John Powers, A narrator, NASA researcher, Robert Voas, Virgil Grissom, Joseph Lubin, Stanley White, F.V.H. Hillas, Mort Slur, Donald Slayton, Harrison Brown, T. Keith Glennin

John Newmark (piano)

Hans J. Moser (leadvocalist), Choir of the Gregorian Society of the Berlin State Academy of Church and School Music, Prof. Dr. H. J. Moser (leadvocalist), Choir of the Berlin State Academy of Church and School Music, Berlin State and Cathedral Choir, Thiel Madrigal Choir, Erwin Bodky, Munich String Quartet, Maria Peschken (contralto), Martha Glissmar, Georg Blumensaat, Paul Hermann, Hermann Halbig, Pius Kalt, Prof. H. Rüdel, Prof. Dr. Carl Thiel

David Nzomo (leadvocalist)

Robert Franc

Pete Seeger, Jeanne Humphries, Rev. Frederick Douglass Kirkpatrick (leadvocalist)

Jon Appleton

Barton Smith (acoustic guitar, bass guitar)

Entourage Music and Theatre Ensemble

Johnny Richardson (leadvocalist)

Sarah Barchas (leadvocalist)

Theatre a la Carte, Ken Olfson (leadvocalist), Clark Warren (leadvocalist), Marisha Vasek (leadvocalist), Beth Shorter (vocals)

Princess Nowedonah, Dennis Starin

Leo Hurwitz, Charles Pratt

Andrew Gunsberg (leadvocalist)

Brian Mackness, Malcolm McCallum (leadvocalist)

The American Brass Quintet

Hyman Bress, Charles Reiner

Hyman Bress, Charles Reiner

Vaclav Nelhybel

David Cope

İlhan Mimaroğlu, Mary Ann Hoxworth (leadvocalist)

Jeff Richman, Trudie Richman (leadvocalist)

The Wayland Consort Orchestra, David P. McKay, Susan Clickner (leadvocalist)

The Isaiah Thomas Singers, Stephen Long, David P. McKay (chorusmaster)

Franzpeter Goebels

Irene Dailey, John Aspinall, Nancy Howard, Shirley Leinwand, Beverly Shimmin, Del Shorter

Claire Luce

V.C. Clinton-Baddeley (leadvocalist), Marjorie Westbury (leadvocalist), Jill Balcon, Caroline Southam, John Glen, Carleton Hobbs, Christopher Hassall, C. Day Lewis, Pauline Letts, Dimitri Vetter, Harry Hutchinson, Edgar A. Vetter, T.W. Southam

José Rodrigues Miguéis

Child Development Group of Mississippi (leadvocalist)

Israel Kaplan

Burton Raffel, Robert P. Creed

Lucie De Vienne Blanc, Henri Barras

Paul Mankin

Armand Bégué, Louise Bégué, Pierre Capritz

Shakespeare for Students Company

Don José Crespo

Bertolt Brecht

Poetry reader

Marian Seldes

Addison M. Metcalf

John S. Martin

O. Watters, Alexander Semmler, P. Morgan, Pat Lynn, King Palmer, Vaclav Nelhybel, J. Woodburn, John Rhodes, Alexander Barta, H. Geller, Jack Jordan, Alan Perry

Malcolm Goldstein, Kenneth Karpowicz (leadvocalist)

Pete Seeger (leadvocalist)