Lothar Klein, Karl-Heinz Stockhausen, Clifton Williams, Luis Herrera de la Fuente (conductor, National Symphony of Mexico) in Mexico City, 1964)

Igor Stravinsky, Lothar Klein, Austin Texas, 1965

Conductor Sir Andrew Davis, Lothar Klein - Toronto Symphony premier of Musica Antiqua, 1976

Boris Blacher and friend, Berlin, 1960's, photo by Heinz Koster

Karel Ancerl, Lothar Klein, Toronto Symphony premiere of Paganini Collage, 1971

Maureen Forrester, Boris Brott, Lothar Klein, premier of Philosopher in the Kitchen, 1975

Aaron Copeland, Lothar Klein, Tanglewood, late '50's

Lothar Klein, Witold Lutoslawski, and wife Maria, visiting Toronto 1980

Lothar Klein, MacDowell Colony, New Hampshire, 1972

Lothar Klein, MacDowell Colony, New Hampshire, 1992

Visiting friend and composer Gerald Humel in Berlin 2002

Lothar Klein, Bruce Nicol, Gustav Ciamaga, Dennis Patrick

Lothar Klein, Premiere of Danceries for Orchestra 1993

Lothar Klein, 2003

Lothar Klein with composer friends, Joseph Landers and Frederic Goossen

Lothar Klein, Manta Sound Studios, Toronto 1974

Lothar Klein recording session 1974 pencil sketch by Dino Kotopoulis

Lothar Klein, conductor Miklos Erderly

Lothar Klein, Faculty of Music office, Toronto, 1993

Lothar Klein, Kent Kennan, Igor Stravinsky, Vera Stravinsky - University of Texas, Austin, 1965

Lothar Klein, Kent Kennan, Igor Stravinsky, Vera Stravinsky - University of Texas, Austin, 1965

Igor Stravinsky, Lothar Klein, University of Texas, Austin, 1965