So, here’s the setup:
You’re stuck in Westeros. Don’t ask me how you got there, but you ain’t coming back any time soon. On the plus side, you’ve got a backpack-portable, nuclear-powered karaoke machine with built-in speakers and microphone that will run for longer than your projected life span. Also, it’s got every song you could ever want on its massive solid-state drive. It doesn’t matter how obscure the song is, you can find it and karaoke it. Even instrumentals are there if you feel like trying to write your own lyrics. Oh, and everyone speaks English. Where’s the fun otherwise?
Time to hit the road and try to make it as a bard with the loudest sound Westeros has ever known. What do you think will be liked, what will be hated, and what do you need to stay away from in case Joffrey takes it the wrong way and decides to make an example out of you?
Personally, I think your best bets are ballads that don’t reference too much of our culture. Not sure if you want more of a classic ballad or more of a power ballad.