From 7 to 17 April, the 2011 ISCM World New Music Days are taking place within the 26th Music Biennale Zagreb 2011 in Croatia. Theme of the festival is Mirabilia Memorabilia.

The 26th Biennale, while celebrating 50 anniversary, will host the Inernational Society for Contemporary Music ISCM–World New Music Days 2011 Festival, which is once again returning to Zagreb, one of the few metropolises in the world the ISCM has chosen to host this festival. As much as 259 compositions by 51 sections entered into the open competition, along with 140 individual entries from all over the world.

The compositions are carefully selected by a panel of distinguished artists who met in Zagreb October 15th-17th: Luc Brewaeys (Belgium), Benet Casablancas (Spain), Lojze Lebic (Slovenia), as well as Marko Ruždjak and Nikša Gligo (Croatia). The panel’s work is overseen by the artistic director of the Music Biennale Zagreb Mr. Berislav Šipuš, and the selected compositions will be performed by orchestras coming from all over the world which are participating in the Biennale programme .