Конфедерация на независимите синдикати в България (КНСБ)

The Confederation of Independent Trade Unions of Bulgaria gathers 34 federations and unions and close to 300,000 members, and it is recognised as nationally representative by decision of the Council of Ministers. On 18 February 2015 it took Hall 1 of the National Palace of Culture for a concert of its own: the anthem, Rachmaninoff's Second Piano Concerto with Georgi Cherkin, arias by Puccini, canzonettas, and the Brindisi from La traviata, with Kaludi Kaludov, Orlin Goranov and Ivaylo Mihaylov.