Erik's Music Database - discography search: performer is "Georgi Kehaiov" and performer is "Tsvyatko Blagoevs Folk Group" and lead instrument is gaida and performer is "Demko Kourtovs Zourna Group" and performer is "Voenno Predstavitelniya Douhov Orkestar Army Brass Band" and performer is "Boris Mashalov"