During his studies and as a result of the influence of Filip Kutev he became interested in Bulgarian folk music, which has been his main field of work since then.
Petar Omčikus | Petar II Petrović-Njegoš | Petar Gudev | Petar Kočić | Petar Dobrović | Petar Dachev | Petar Dobrovic | Petar Beron | Sveti Petar u Šumi | Sveti Petar Orehovec | Sveti Petar Čvrstec | Sveti Petar | Petar Zrinski | Petar Stojkoviḱ | Petar Radev | Petar Mrkonjić | Petar I Petrović-Njegoš | Petar Drapšin | Petar Brzica | Petar Beron (politician) |