One has to account for regional variances. I’ve heard it pronounced “that song, you know, that goes deedle deedle deedle deedle dum,” or “hey, Tiffany, there’s a piano store, play that one song you know.” The would-be player’s friends called it “let me try…how does it go? I always forget how many deedle deedles it has. And which black notes do I start at again, there’s so many!”
I always pronounced it “get out of my piano store and never play that stupid song here again.” 