Cosmic Voices, a 16-member a cappella choir, was part of the week-long Bulgarian mini-festival Sofia Days. Its traditional singing has similarities with the becarac singing found in rural areas in BiH and Croatia, with its dissonant chords and yodelling-like voices.
"Kosmički glasovi," sesnaestočlani a cappella hor, nastupao je u okviru sedmodnevnog bugarskoj mini-festivala "Sofijski dani." Tradicionalno pevanje tog hora slično je bećarcu koji se peva u ruralnim delovima BiH i Hrvatske, sa svojim disonantnim akordima i glasovima koji podsećaju na jodlovanje.