: Often involved in the video production of their performances.
: A collaboration featuring Petar Slavov and Ruska Dobreva with the Biseri ensemble. Production Background petr_slavov_i_daniel_iordanov_s_orkbiseri_i_pri...
: Featuring music and arrangement by Zhivko Zhelev and support from Orkestar Biseri and friends. : Often involved in the video production of