ORKESTRA ALANINDA YAZILMIŞ YÜKSEK LİSANS, SANATTA YETERLİK VE DOKTORA TEZLERİNİN İNCELENMESİ (ANALYSIS OF MASTER’S, COMPETENCY IN ART, AND DOCTORAL THESES WRITTEN IN THE FIELD OF ORCHESTRA) - Ömer BİLGEHAN SONSEL -Mehmet EFE | The Journal of Social Sciences