I really don’t understand why you have to be so manipulative.
Just tell him about sapien and if he thinks it is bullshit, you can still ask if you can play them since he doesnt believe it anyway (it’s most of my family’s stance lol). But I *ask permission.
But OM already put it perfectly about non-interference, so here (this was about items with fields, but you using the audios with the goal of altering your brother’s personality is even more fitting):