Cesur Özdemir who is educated in certificate program of Istanbul University State Conservatory and in conducting postgraduation of İTÜ Dr. Erol Üçer Music Center for Advanced Studies, represented Turkey at the World Choir Olympics with Boğaziçi Jazz Choir in 2010. He won 1 second prize in the world, 2 third prize in the world and 3 gold diploma awards in the Mixed Chamber Choir, Contemporary Music and Jazz categories. He joined Rezonans as a founding member in 2010 and worked as a choir trainer. In 2012, he established Yeditepe University the Polyphonic Choir and Choral Culture Association which represents Turkey in the European Choral Association. In 2013, he joined A Capella Bosphorus which is one of Turkey’s first a cappella groups and worked as a guest conductor in Istanbul European Choir and Boğaziçi University Classical Music Choir.