The Warsaw Music Encounters Festival has been organized since 1986, by the Warsaw Branch of the Polish Composers' Union. It is the only festival focused on the work of composers operating in Warsaw. From the very beginning, its characteristic feature is the presentation of unknown works of early music. This combination of early and contemporary music sometimes creates surprising contexts, inspiring the creation of new compositons, using selected idioms of historical music. The festival presents various approaches towards the musical avant-garde. Festival also avoids presenting works created in the 18th and 19th centuries, unless pieces forgotten, or recently discovered and worth presenting. Therefore, it creates a significant complement to the classic-romantic repertoire, performed every day at the philharmonic halls and its important feature is its cognitive function. The festival's Program Council consists of composers and musicologists.
 
In 2020, due to the exceptional situation of the COVID-19 epidemic, the Festival's Program Council decided about its different form, with limited participation of the audience. Four chamber concerts were selected for implementation, organized in accordance with current epidemiological regulations and broadcast live over the Internet.