- Marcello Viotti, Frankfurt Radio Symphony, Sylvia Greenberg, Ruth Ziesak, Marcus Creed, Berlin Deutsches Symphony Orchestra, Alexandrina Pendatchanska, Sofia Symphony Orchestra, Michail Angelov, Lucia Aliberti, Lamberto Gardelli, Rundfunk-Sinfonieorchester Berlin, Sylvia Sass, Budapest Symphony Orchestra, Anna Tomowa-Sintow, Sofia Philharmonic Orchestra, Rouslan Raichev, Ghena Dimitrova, Plovdiv Philharmonic Orchestra, Pinchas Steinberg, Cologne Radio Chorus, Cologne Radio Orchestra, Ulrike Steinsky, Hungarian State Opera Female Chorus, Andras Korodi & Hungarian State Opera Orchestra
- Alberto Erede, Renata Tebaldi, Swiss Romande Orchestra, RAI Symphony Orchestra, Milan, Nino Sanzogno, Orchestra del Teatro alla Scala di Milano, Arturo Toscanini, Arturo Simonetto, Carlo Bergonzi, Mario del Monaco, Dimitri Mitropoulos, Fiorentino Maggio Musicale Orchestra, Silvio Maionica, Hans Beirer, Karl Böhm, San Carlo Theatre Orchestra, Gaetano Merola, San Francisco Opera Orchestra, Giuseppe di Stefano, Carlo Maria Giulini & RAI Symphony Orchestra Rome
- Fiorenza Cossotto, Luciano Pavarotti, Gabriel Bacquier, Nicolai Ghiaurov, Coro del Teatro Comunale di Bologna, Orchestra del Teatro Comunale di Bologna & Richard Bonynge
- Andrea Rost & Royal Philharmonic Orchestra
- Galina Gorchakova, Gegam Grigorian, Nikolai Putilin, Mikhail Kit, Olga Borodina, Valery Gergiev & Mariinsky Orchestra
- Hermann Prey, Marilyn Horne & Samuel Ramey
- Lucia Popp, Brigitte Fassbaender, Werner Krenn, Tom Krause, Manfred Jungwirth, Vienna Haydn Orchestra & István Kertész
- Vienna Philharmonic