Yessetova Ainur Takeevna, Dzhanseitova Svetlana Sattarovna, Kadyrbek Aidana, and Zhaulybay Akgul Zhanbolatqyzy, “MUSICAL PERFORMANCE AS A FACTOR IN THE SYSTEMIC DEVELOPMENT OF A MUSICIAN’S PROFESSIONAL AND PERSONAL COMPETENCIES”, SR, no. 12, Jan. 2026.