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

As with this hobby there are all differing opinions so here’s mine…. The hardest music to play is the music you love and are familiar with.  You build and tweak your system to make the stuff you love sound the best.  And if you’re like me with a wide palette it’s near impossible to achieve the best of everything. 

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.