 In 1942-1943 he works as a conductor of Kazan management of cinema, and in the period from 1943 to 1944 - the conductor of the Philharmonic hall in Izhevsk.In 1963 Joseph Pustylnik received the title and the position of associate Professor at the Leningrad Conservatory, and after writing his Doctoral thesis on "Mobile counterpoint and free letter" from 1967 he worked as Professor.After World War II, in early 1947 Joseph Pustylnik is close friends with Johann Admoni, which together with like-minded people did in those years informal free (folk) music institution at the House of composers in Leningrad - Seminar of Amateur composers.