What is the most challenging music to play on a stereo?

Doug Wamble - Blues in the Present Tense

@edcyn 

thanks so much for that explanation.  Totally makes sense and gives me more appreciation to listening for details with piano playback in my system.  I also have to add that playing at the proper volume would get you closer to realism, just don’t overload the room.  This discussion is quite interesting with everyone’s feedback and vast knowledge and experience. 

Music of a genre I didn’t understand or was unfamiliar with..

Pipe organ. When I bring such recordings to demo audio most won't even play it. Others look like scared rabbits when asked.

@johnk 

Ok, that is funny.