"Marcello Viotti (29 June 1954 \u2013 16 February 2005) was a Swiss classical music conductor, best known for opera.Viotti was born in Vallorbe, in the French-speaking region of Switzerland, to Italian parents. He studied cello, piano and singing at the Conservatory of Lausanne. Wolfgang Sawallisch was a mentor to Viotti and encouraged him to begin his career in the theatre."@en . "2005Z"^^ . . . "Swiss conductor" . "1954Z"^^ . "Viotti, Marcello"@en .