The Music Biennale Zagreb is an international festival of contemporary music initiated back in 1961. This cultural event had immediately gathered the eminent names on the international music scene, thus having received a strong response as well as an incentive in its own environment. The most prominent figures in the organization of Music Biennale Zagreb in its beginnings, Milko Kelemen (the MBZ initiator and president), Ivo Vuljević (head of MBZ promotion) and Josip Stojanović (the director of MBZ), worked tirelessly to ensure success of this extraordinary project in need of special efforts in convincing its own opponents that with MBZ the democratisation of music and culture in Yugoslavia is taking place.
This was the period when New Music flourished. The focus of this claim was particularly pointed towards the areas of electronic and electro-acoustic music as well as towards music scene and instrumental or music theatre. In those days the Music Biennale Zagreb was a platform of contemporary music detached from any form of convention, thus not having turned into a classic festival, but rather prompted a possibility and necessity to confront, re-examine and disclose the reasons, style or experience of a new and distinct view of life. Of course, this view was not the only one, nor was it unambiguous, but its idiom could be easily identified.
At the same time, the contemporary music scene of the period included the authors like Igor Stravinsky, Benjamin Britten and Dmitry Shostakovich, just to name a few, as well as many other composers considered masters of the 20th century music, most of whom attended the Biennale. Although some of those composers subsequently, in retrospective, expressed doubts about 'their' period of the avant-garde, the Biennale years of the 1960s and 1970s provided incentive, thus having sublimated the very essence of the entire international contemporary music scene and having made a significant and profound impression on various fields of creative activity.
Over the subsequent years, the festival framework assumed a more distinct and compact structure, the mature reflection enhanced the initial impetus. Different views on topics came as the natural course of events, having been established as a continuous feature depending on the festival's leadership. Different festival themes were in focus, from electronics to women composers; several countries were stressed in the festivals' programs like Sweden or Canada for example. There were festivals within the main festival (popular Urbofest or World New Music Days that was held in Zagreb in 2005 and 2011), numerous exhibitions, seminars, workshops, etc. Still MBZ was always focused on the institution of composer's persona. Messiaen, Stockhausen, Stravinsky, Cage, Berio, Penderecki, Lutoslawski, Maderna, Kagel, Globokar, Nono, Xenakis,Lucier, Schnebel, Reich, Murail, Maxwell Davis, Birtwistle, Schaffer, Nyman, Cerha, are only some that were MBZ's guests.
From today's perspective and after 50 years of experience, it is hard to extract only some compositions, which were mostly performed at the MBZ for the first time (at least in this part of Europe), extraordinary performers, multiple projects, shows, concerts and installations, symposiums, and also all casual, random encounters and talks, that are built into the MBZ of today - the MBZ that is defined both by its tradition and by its beginnings as well as by the position in its own community and on the international music scene, but also by the relationship with the future generations and trends.