Only full orchestral music can test the dynamics of your system. Your sound pressure level meter tells the tale. Full orchestral music goes from a whisper to a roar in a second in a way that no other music does. Plus the need to accurately reproduce all the instruments in a full orchestra will test the tonality of your system. That said you really only need Decca's recording of Holst's Planets with Mehta conducting the LA Phil. On the first track Mars you should feel you're about to be invaded. Yes it's bombastic. That's the point.
And now for something completely different.
Who knew there were so many Shelby Lynne fans on Audiogon? I stalked her from Boston to Knoxville. Her sound completely changed once she crossed the Mason Dixon line becoming even more heartfelt and moving once she was home showing that music is a product of the noivous system. She is great on Daryl's House on YouTube.