On Saturday, November 7, 2015, singers from the MIBIDIZO choir rehearsed the repertoire they will perform at the XXV. International Festival of Advent and Christmas Music in Prague. The festival takes place on 27th, 28th November 2015. It is a prestigious competitive festival with international participation, where choirs compete for the Petr Eben Award, which is given to the choir for the best competitive interpretation of a composition by this composer. The competition is judged by an international jury.

MIBIDIZO competes in the category "Children's Choirs under 16", where it will meet the Latvian PJMS Children's Choir and the Estonian Kinderchor und Jugendchor des Realgymnasiums Rakvere.

The competition will take place in the Concert Hall of the Prague Halhol, and the announcement of the results will take place in the Church of St. Anne - Prague Crossroads. This centre is one of the projects of the Dagmar and Václav Havel Foundation VIZE 97.

The singers will be able to showcase their qualities in international competition and in front of an expert jury.