TY JOUR TI SOCIO-CULTURAL SIGNIFICANCE OF ACADEMIC CHORAL ART IN THE STUDY OF THE ROSTOV PAGE OF THE CONCERT ACTIVITY OF THE OUTSTANDING MODERN CONDUCTOR OHANES TCHEKIDJIAN KW Ohannes Tchekidjian KW conductor KW Rostov-on-Don KW Artistic Director of the State National Academic Choir of Armenia KW «Requiem» by Faure KW «Requiem» by Verdi JO Medicine and Art AU Asatryan, A.G. PY 2024 IS PB Academy of Rehabilitation Medicine, Clinical Psychology,and Music Therapy