Deon van der Walt his debut as Almaviva in Rossini’s "The Barber of Seville". He was counted amongst the leading lyric tenors of his day and performed at all the world’s major opera houses, including He also performed at numerous international festivals, especially at the Salzburg Festival, where he sang Belmonte in Mozart's "Abduction from the Seraglio" and Ferrando in "Così fan tutte" under Riccardo Muti. On video, he can be seen in Handel's "Semele" as Jupiter, singing a long, beautifully shaped "Where'er you walk"; in Donizetti's "Linda di Chamounix" with Edita Gruberová; and in "La belle Hélène". Deon van der Walt died at
Persian Letters texts and renewed perspectives. Particularly important were the extensively annotated edition by Paul Vernière and the research of Robert Shackleton on Muslim chronology; also studies by Roger Laufer, Pauline Kra and Roger Mercier, which put new focus on the work’s unity and integrated the seraglio into its overall meaning. Others who have followed have looked into the ramifications of epistolary form, the structure and meaning of the seraglio, Usbek’s contradictions. Beginning about 1970 it is religion (Kra) and especially politics (Ehrard, Goulemot, Benrekassa) which predominate in studies on "Lettres persanes", with a progressive return to the role of the seraglio