The internet sent me on some reading and I came across this point: playing music in the backgrond reduced cognitive dissonance experience.
Interesting. Similar to hand-washing. Interesting. From Wikipedia.
A 2012 study using a version of the forbidden toy paradigm showed that hearing music reduces the development of cognitive dissonance. With no music playing in the background, the control group of four-year-old children were told to avoid playing with a particular toy. After playing alone, the children later devalued the forbidden toy in their ranking, which is similar findings to earlier studies. However, in the variable group, classical music was played in the background while the children played alone. In that group, the children did not later devalue the toy. The researchers concluded that music may inhibit cognitions that result in dissonance reduction. 10 Music is not the only example of an outside force lessening post-decisional dissonance; a 2010 study showed that hand-washing had a similar effect. 1011
An outstanding article
7 hours ago