Recently I have been listening to a lot of Alternative Metal. Melodic instrumental.
Torben Enevoldsen. Helix Nebula, and Christian Metzler.
Also on the other end of the spectrum,
The Dead South. It's Bluegrass. But not your grandparents Bluegrass.
I recently began dabbling in audiophile headphones and in ear monitors, and I like to listen to Hotel California, because it has a lot of clarity, range, and soundstage. I tend to use it to test out new headphones because of that as well.