The tenor, Tosko Iliev, was born 1 September 1895 in Borisovgrad. His first performances were with the school choir. In 1922 he graduated from the Sofia University of Law. Towards the end of 1923 he left for private voice lessons in Vienna. Before his stage debut he worked as a choirmaster.
His debut was in 1934 at the Stara Zagora Opera singing the role of Nikola in the Bulgarian opera Gergana by Atanasov. From 1933 to 1943 he was engaged as a leading tenor and administrator at Stara Zagora. In 1940 he performed Alfredo with the Sofia Opera. Major roles in his career included the Duke in Rigoletto, Alfredo, Faust, Don Jose, Canio and Turridu.
Iliev was a founder and a main figure in the professional development of the Stara Zagora Opera. He was elected as director and worked there from 1946 until 1954.
Weber: Der Freischütz Durch die Wälder