I, for one, would never laugh. But for me it's ... errr ... Handel's Water-fed pole Music
Sorry.
When working on big houses in out of the way places where I can leave the van open, I have Classic fm blasting out.
Sometimes it just has to stop though. Mozart's Clarinet Concerto in A just sends me into such rapture that I'm useless for an hour afterwards.
I did a couple of weeks temping in a factory where Radio 1 was blaring out all day. Might suit some. Didn't suit me.
Window cleaning suits me and that is the motivating factor. I can be myself, I can set my own standards of everything and (as long as I please my customers) I can please myself.
And if I want to listen to Clasical music, I can.