Music played at high volume during torture sessions was part of the psychological suffering endured by political opponents detained when Pinochet seized power in 1973.
According to former prisoners, Harrison's My Sweet Lord, the sound-track to Stanley Kubrick's film A Clockwork Orange and songs by Spanish crooner Iglesias were played for days at a time.
University of Manchester researcher Dr Katia Chornik has investigated the use of music in Pinochet's notorious torture houses, concentration camps and prisons.
Some prisoners said they used music to pluck up courage ahead of torture.
Dr Chornik said: "Music brought prisoners together because it was a way to deal with their terrible suffering.
"Pinochet's system also used music to indoctrinate detainees, as a form of punishment and a sound-track to torture.
"Otherwise popular songs were used to inflict psychological and physical damage."