1. SYNCRETIC TRENDS IN CONTEMPORARY WESTERN EUROPEAN VOCAL AND CHORAL ART: THE CHALLENGE OF TODAY. Authors: NATALIA GREBENUK, OLENA BATOVSKA, YANA KYRYLENKO, TAMARA TESLER, RAFAIL HASANOV.2. TRADITIONS AND INNOVATIONS IN CONTEMPORARY VOCAL AND CHORAL ART. Authors: OLENA BATOVSKA, NATALIA GREBENUK, NATALIYA BYELIK-ZOLOTARYOVA, YULIIA IVANOVA, TETIANA SUKHOMLINOVA, IANA KAUSHNIAN.3. MODERN GLOBAL TRENDS IN THE DEVELOPMENT OF CHORAL PERFORMANCE. Authors: OLENA BATOVSKA, NATALIYA BYELIK-ZOLOTARYOVA, JULIIA IVANOVA.