Petar Tzankov graduated from the State Academy of Music in 1970 majoring in Percussion. He worked as a flutist (till 1960), saxophonist (till 1964) and percussionist being member consecutively of the rock bands Bandaratzite, Shturtsite, the Big Band of the Bulgarian National Radio and FSB (1965-1980).
In 1969 he started composing music to theatre and puppet plays. He taught Percussion Instruments at the Pop and Jazz Music Faculty of the National Academy of Music (1970-1984) and at the National Theatre and Film Academy (1984-1988). Participated in the work of the studios at the summer music and theater academy in the Acant Center (1986, 1989).
In 1988 he completed a contemporary music analysis course given by Olivier Messiaen. He was President of the Puppet Art Section at the Union of Bulgarian Actors (1988), Vice President of the Bulgarian Centre of UNIMA (since 1986) and President of the Interma Centre in Sofia (since 1990).
He composed the music to over 160 theatre and puppet plays in Bulgaria and abroad. His music was awarded at national festivals of puppet art and the international festivals The Golden Dolphin in Varna, Persons and Puppets in Pleven, Yan Bibian in Silistra, etc.
In 2009, he was awarded with the highest award for theater art in Bulgaria “IKAR” for overall contribution to the puppet theater and for the music for the show “The Little Mermaid”.
Among the puppet shows with his music are the productions: “Where are you going horse” by Rada Moskova, directed by his sister Emilia Tsankova (a graduate of the first class for puppet theater directors and winner of international awards from abroad), “The Moon Room” and ” A White Tale” by Valery Petrov, “The Fair Musketeer”, “Peter in Light Blue”, “The Tempest” by Shakespeare, “The Dragon with Violet Blue Eyes”, “The Little Prince” by Antoine de Saint-Exupery, “The Little Mermaid” by Hans Christian Andersen , “Pinocchio – not for adults” and many others.

Stage music:
Musical plays:

”Smeshki strashni” (Frightening Funny Stories) (Youth Theatre);
”The Six Dolphins” (Youth Theatre);
”Don Quixote” (1989, State Puppet Theatre in Plovdiv);
”We Won’t Pay” after Dario Fo (1986, Kardjali).