Kubrick's attention to music was an aspect of what many referred to as his "perfectionism" and extreme attention to minute details, which his wife Christiane attributed to an addiction to music. In his last six films, Kubrick usually chose music from existing sources, especially classical compositions. He preferred selecting recorded music over having it composed for a film, believing that no hired composer could do as well as the public domain classical composers. He also felt that building scenes from great music often created the "most memorable scenes" in the best films. In one instance, for a scene in "Barry Lyndon" which was written into the screenplay as merely, "Barry duels with Lord Bullingdon", he spent forty-two working days in the editing phase. During that period, he listened to what LoBrutto describes as "every available recording of seventeenth-and eighteenth- century music, acquiring thousands of records to find Handel's sarabande used to score the scene". Jack Nicholson likewise observed his attention to music for his films, stating that Kubrick "listened constantly to music until he discovered something he felt was right or that excited him".