 He developed the SAVI System of Singing-Acting and has taught students using this pedagogy in workshops and residencies in the United Kingdom, Sweden, Denmark and Germany.Among his works for the musical stage is the 1979 musical "Assassins"., source of the idea for Stephen Sondheim's Tony Award-winning musical of the same name.Following a lengthy and thorough national search, Charles Gilbert was named director of the Ira Brind School of Theater Arts in 2008.