By May 1935, Respighi had cancelled several engagements due to ill health, including a scheduled trip to conduct a series of concerts at the Hollywood Bowl in Los Angeles. By November, he had completed a piano draft and the majority of the orchestral arrangements of his next opera, "Lucrezia". He had planned to work on a transcription of an opera by Francesco Cavalli that was to be staged alongside "Lucrezia" during the 1936–37 season at the La Scala in Milan, but declining health caused him to stop work. Neither work was completed in Respighi's lifetime; Elsa finished "Lucrezia" after Respighi's death with Respighi's former pupil Ennio Porrino, in 1937.