For twenty-five years, the Trison choral ensemble is delivering the message of peace and harmony pertaining to choral music, the ardor and pleasure of making music together, under the leadership by professors Marcica and Stefan Lupu. They led the choir very successfully, preformed numerous concerts, participated in prominent competitions and festivals in Romania and abroad. Thus, promoting a repertoire which mainly includes Romanian but also international choral compositions. The Trison Choir rehearsals are taking place in the School of Arts and Crafts "Vespasian Lungu" in Braila.

Some of their latest succeses on international contests and festivals are: Bulgaria (Sofia – 2004 with Bronze Medal; Baltchik – 2013 and 2014), Greece (Preveza – 1998 with Bronze Medal and 2016 with Bronze Metal; Karpenisi – 2015 with two Silver Medals).

Marcica Lupu graduated the "Ciprian Porumbescu" Music National University from Bucharest. In 1992, Marcica Lupu has set up and leads the Trison Mixed Choir. As an assistant conductor and accompanist, Ștefan Lupu helps his wife Marcica Lupu.