Why couldn't they just turn off the background music during the experiment?
In a scene where Alex was given the Ludovico treatment and being strapped in the chair, when he started panicking and complaining loudly about his favorite piece the Beethoven's 9th Symphony playing in the background, why couldn't those people just turn it off? Or was it done somehow intentionally to increase Alex's punishment or maybe they just didn't care?
And did they, he and others even realize or suspect that it might cause Alex not to ever listen to the tune again without feeling bad and later, when he visits that author's house again, even suicidal?
And because they may have also felt a sense of unease and maybe get a sense that it is somehow distracting Alex as it may not have even been intentionally a part of the experiment, why didn't they just turn the music off or give him headphones or ear plugs or something so he can concentrate better on what he is supposed to be watching and learning about the wrongs of crime, violence and hurting of innocent people?