Ensemble U: is currently the most active and renowned contemporary music ensemble in Estonia. It has gained recognition for its ability to perform even the most demanding works without a conductor, openness to bold experimental ideas and sensitivity to sound. 

U: performs the masterworks of modern composers as well as experimental compositions. One distinct field for U: is to delve into improvisational works and perform pieces that require the rendering of non-traditional notation. The repertoire includes composers from Estonia and abroad and the ensemble values the opportunity to continuously commission new music to be written for them.