Westi had his voice trained in Copenhagen and made his debut in Odense (as Almaviva, 1960). He
sang in Kiel (1962/63) and Hannover (1963–66) before returning to Copenhagen, this time as a member of the Royal Theater
Then, very unusual after a career of almost 20 years, Westi decided to restudy in Berlin and Mantova. 1980 to 1986 in Oslo and
1986 to 1989 in Mannheim, he continued singing as a freelancer for the rest of his life, particularly at the Deutsche Oper Berlin
and in Copenhagen, but also in Buenos Aires (Teatro Colón), Stuttgart, Leipzig, Hamburg, Bergen, Stockholm, Minneapolis,
Glasgow, Freiburg im Breisgau, London (Barbican Hall), Catania and Düsseldorf.
His repertory developed from Lindoro, Almaviva, Don Ottavio, Ferrando, Lenskij or Verdi's Fenton to Albert Herring, Quint (The
turn of the screw), Edgardo, Cavaradossi, Rodolfo, Alfredo, Narraboth and Matteo, and further to Turiddu, Riccardo, Calaf,
Peter Grimes, Radames and Grigorij.
Reference 1: Kutsch & Riemens, reference 2