In creating music, Gould much preferred the control and intimacy provided by the recording studio. He disliked the concert hall, which he compared to a competitive sporting arena. He held his final public performance in 1964, and thereafter devoted his career to the studio, recording albums and several radio documentaries. He was attracted to the technical aspects of recording, and considered the manipulation of tape to be another part of the creative process. Although Gould's recording studio producers have testified that "he needed splicing less than most performers", Gould used the process to give himself total artistic control over the recording process. He recounted his recording of the A minor fugue from Book I of "The Well-Tempered Clavier" and how it was spliced together from two takes, with the fugue's expositions from one take and its episodes from another.