I hope I'm not running out too fast of newbie-credit with this one : when trying potential or brand new headphones is there a song, a classical music piece or something else that is recognized as suitable for the first-time-listening experience. Do you have reference songs to judge that...

Hello this is my first post on this fine forum and I hope I post in the right sub-forum. (if not, mods, please feel free to move it where it belongs)   Here is my problem : babies crying in buses, the mechanical noises of the subway, traffic etc. are forbidden-by-Geneva-conventions tortures...