History
                 
  
  1988 Choir Days  
1989 Choir Days  
1990 Choir Days  
1991 Chior Days  
1993 Choir Days  
1995 Choir Days  
1998 Choir Days  
2001 KÁNTUS Debrecen  
2001 El Café Chorale  
2002 Singkreis Porcia  
2003 Choir Days  

2003 Choir festival Alzenau
2004 Chamber chior Rozhdestwo
2004 UPCC (Philippinen)
2005 El Café Chorale
2006 Opening concert Edelweiss
          Festival 2006, Mernes
2007 Concert in Zellhausen
          El Café Chorale
2009 Concert in Zellhausen
          Estudio Coral Meridies
2012 Choir days
2011 Concert Choeur La Grâce,
          Republic Kongo
2012 Concert Agrupación Coral           PDVSA INTEVEP, Venezuela
2013 Concert Quanta Musica,           Argentinia

2014 Concert Cantamina,
          Austria
  2014 Workshop with
          David Ramirez