They appeared internationally, including for presidents of state and popes, and in large size for the opening of the Olympic Summer Games 1972 in Munich, and of the 1974 FIFA World Cup.

[1][3] Concordia won first prize at the Schwäbischen Sängerfest in Göppingen where 150 choirs competed in the category Volks- und Kunstgesang (Volkslied and art song).

The Fischer-Chöre appeared on TV first in 1969 in Wim Thoelke's series Dreimal neun,[1] making them popular across Germany.

The Fischer-Chöre sang in large size for the opening of the Olympic Summer Games 1972 in Munich.

From 1995 to 2008, Fischer ran a television series entitled Straße der Lieder (Road of songs) for the broadcaster SWR.