I listen to a wide variety of music, so I can't just shuffle the whole shabang.
But, I do have a bunch of playlists that I either use to get to single songs, or use to listen to them all at once.
I have a playlist full of the BGM from Minecraft. The BGM doesn't play as often as I would like, so in the background, I play a shuffled loop playlist of Minecraft BGM.
I also have a playlist of all the records in Minecraft, minus 13.
Then I have a Nightcore playlist, full of hour mixes like this one;
Also a couple playlist from Zelda Reorchestrated;
http://zreomusic.com/
Also a playlist of some songs from the end of Cry's [ChaoticMonki's] videos, like this one;
I also have a Vocaloid playlist;
And then I have the whole High-Quality Soundtrack of Iji;
http://www.remar.se/daniel/iji.php
This is definitely not all i have, but due to the limits of only 5 videos per post, this is all you get.
Edit: Oh, I also usually listen to a single song on a single track loop; meaning I only listen to that one song. I do that with songs I quite enjoy, like
Owl City - When Can I See You Again? from Wreck-It Ralph. <3