1973
USA, Chicago Musical College of Roosevelt University
1974
Mexico, Mexico City, Conservatorio Nacional
1986
Taiwan, Taipei, Theological College, Yangming Mountain
1983
Neuseeland, Auckland, University
1983
Neuseeland, Hamilton, University
1983
Australien, Perth, Academy of Performing Arts
1983
Brasilien, São Paulo, Imaculada Conceição
1985
Südafrika, Durban, City Hall
1974
TV und Rundfunk in Mexico
1976
El Salvador
1978
Magadino (Schweiz)
1983
Brisbane
1983
Sydney
1984
Budapest
1985
Johannesburg