In 1965 Claudio Abbado made his début at the Scala and in 1972 was named conductor of the Scala Orchestra. Until 1986 he directed among other works Il barbiere di Siviglia, Cenerentola, L'Italiana in Algeri by Rossini, Simon Boccanegra, Macbeth and Don Carlo by Verdi, the recent Al gran sole carico d'amore by Luigi Nono, and Pelléas et Mélisande by Claude Debussy. He also conducted numerous concerts. The chorus-master was Romano Gandolfi. In 1975 the ballet dancer Oriella Dorella debuted at La Scala. Among other contemporary composers, up till 1986 the Theatre continued to give works by Luciano Berio (La vera storia), Franco Donatoni (Atem) and Karlheinz Stockhausen (Samstag aus Licht).