| 2009 | Concert Tour to Kyoto |
| 2007 | Concert Tour to Moscow |
| 2001 | Concert Tour toToronto/Canada and Buffalo/USA |
|
2000 |
Choir Festival in Niszhny Novgorod, Russia |
|
1998 |
Concert Tour to Prague visiting the children’s choir of Prague |
|
1997 |
Concert Tour to Berlin |
|
1995 |
World Music Festival in Bochum’s Jahrhunderthalle: participation in „Star Child“ by George Crumb |
|
1994 |
Concert Tour to Niszhny Novgorod, Russia |
|
1993 |
Concert Tour to Luxemburg |
|
1990 |
Concert Tour of the youth choir to Oviedo, Spain |
|
1988 |
Concert Tour to Poland visiting the Polish boys’ choir „Szpaki“ |
|
1987 |
Concert Tour to Paris |
|
1984 |
International Youth Music Festival in Neerpelt, Belgium |
|
1979 |
Concert Tour to Berlin |
|
1978 |
Concert Tour Grenoble, France |
|
1976 |
Berlin / German Singers’ Festival |
|
1974 |
Concert Tour to Mulhouse, France |
|
1971 |
Concert Tour to Mulhouse, France |
|
1970 |
Concert Tour to Vienna, Austria |
|
1965 |
Villa Hammerschmidt |
|
1957 |
Concert Tour to the Black Forest |
|
1956 |
Concert Tour to the Saar |
|
1954 |
Concert Tour to the Saar |