OP1616. LA SONNAMBULA, Live Performance, 5 March, 1955, w.Bernstein Cond. La Scala Ensemble; Maria Callas, Cesare Valletti, Giuseppe Modesti, etc. (E.U.) 2–Myto 89006. Long out-of-print, Final Sealed Copy! - 8014399509060
"Although Valletti was a student of Tito Schipa (from whom he undoubtedly learnt some of the graces of production and interpretation), he was in some aspects a counterpart to his coach. Valletti’s was a light but flexible tenor voice of Italianate lyricism and a rare beauty of tone. His timbre was not as ‘sweet’ as that of Tito Schipa, Ferruccio Tagliavini or Beniamino Gigli, but he was the most accomplished technician of them all."
- Andrea Shum-Binder, subito-cantabile
“As one of the younger tenors to emerge soon after World War II, it was obvious that Valletti was an artist whose reputation would be made based on artistic and musical considerations….His musicianship and vocal colour made him an ideal interpreter of Mozart rôles, and like Schipa [his mentor], he became a renowned Werther with sensitivity and nuance being the key to his interpretation….he was considered a lyric tenor of the front rank.”
- Alan Bilgora, program notes to Pearl’s THE CETRA TENORS