For the third consecutive time in Bulgaria master class "Accordion Kravtsov" will be held. The initiative is part of VII World Championship of folklore "World Folk" program, which will be held from the 17th until the 27th of August in black sea resorts Nesebar, "Sunny Beach", Burgas, Obzor and Saint Vlas. The master class will take place from the 23th until the 27th of August in Nessebar and will be conducted by professor Nikolay Kvartsov - who is an self-proven activist of arts in Russia, candidate art-expert, Saint-Petersburg State University of Culture and Arts, and prize-winner of "Золотой Книги Отечества" (Golden book of the motherland). The "Kravtsov" system is new, invented by the professor himself. It was presented on Musikmesse 99 (Frankfurt). It was created to make the repertoire of accordions more accessible for musicians, playing keyboard accordions. Accordion "Kravtsov" was presented for the first time in Bulgaria during the V Championship of Folklore "World Folk" 2015, and in addition Vitalii Ermachkov from Russia who is professor Nikolay Kravtsov 's student, won the Special Award of the European Association of Folklore Fesivals - EAFF for his preformance on the keyboard instrument. The first such an accordion is already in Bulgaria. His proud owner is Valentin Todorov – student in 4th grade in "Emilian Stanev" Secondary School in Veliko Tarnovo. Valentin and his accordion teacher Stanimir Demirev expressed their joy, proud and happiness and thanked to the European Association of Folklore Festivals - EAFF and Mr Kaloyan Nikolov for the assistance. Those willing to sign up for the master class, can do it through the application form of the official EAFF website.