Peter Yordanov ( Buny ) was born in Sofia Bulgaria and is a sled taugh master of unusual musical instrument tupan(dual), hang drum, cajon. His cajon was custom-made for him in Slavakia. It has built- in bongos and 4 strings. He created the group called Echoo- Balkan Samba in 2008, and year later - a group called Oratnitza. As a member of those he has regulary played clubs and festivals around Bulgaria and around the world including Malaysia ( Penang World Music Festival 2013 ); Finland ( Tromso World Music Festival 2013 ); Belgium ( Brosella Folk & Jazz Festival 2012 ); Russia ( Perm World Music Festival 2014 and 2015 ); Balkan Trafik 2011; Greece ( Balkan Fest 2012 ); Slovakia ( Summer Tour 2012 ) Both groups participated in the July Jazz Festival (BG) and won the Audience Award. In 2012 Oratnitza issued its debut album and 2015 created new album called FOLKTRON.