| 1957 | Sweden |
| 1964 |
East Germany |
| 1967 | East Germany |
| 1968 | Sweden, Denmark, West Germany, Holland |
| 1969 | Norway |
| 1970 | West Germany, France, England, Switzerland |
| 1972 | East Germany, Switzerland, Sweden |
| 1974 | Sweden |
| 1974 | West Germany, Hungary, Austria |
| 1976 | West Germany, Belgium, France, Switzerland |
| 1978 | East Germany |
| 1980 | Poland |
| 1980 | West Germany, France, Belgium |
| 1981 | West Germany, Switzerland |
| 1982 | Italy |
| 1982 | The United States |
| 1984 | Sweden, West Germany |
| 1985 | East Germany |
| 1986 | West Germany |
| 1988 | The United States |
| 1989 | West Germany, East Germany |
| 1990 | Sweden |
| 1990 | West Germany |
| 1991 | Germany |
| 1991 | Estonia |
| 1992 | Germany |
| 1993 | The United States |
| 1994 | Belgium, France |
| 1995 | Japan |
| 1996 | Sweden, Denmark, Germany |
| 1996 | Belgium, Germany |
| 1997 | Japan |
| 1998 | U.S.A. |
| 1999 | Russia |
| 2000 | Germany |
| 2000 | Sweden |
| 2000 | Japan |
| 2001 | Latvia |
| 2001 | Hungary |
| 2002 | Germany |
| 2002 | Germany, Czech Republic, Austria, Switzerland |
| 2004 | Germany |
| 2004 | Norway |
| 2005 | Sweden, Denmark |
| 2006 | U.S.A. |
 Notre Dame, Paris '80 |
 Capitol Hill, Washington DC '93 |
 Sumida Triphony Hall, Tokyo 2000 |
 F. Liszt Academy of Music, Budapest 2001 |