Eh, doesn't matter if it sounds like a Cornell solo track, Soundgarden or Audioslave- all three options are very good options.
Here's something we could see in the sequel: Thanos, like Trump, flies around in a helicopter with his name on the side...
I really liked these two extended scenes as they resolved problems I had with the movie. I was hoping I'd see something that explained the TPM ending, but these scenes made me happy. I'm watching the commentary right now--first time I've ever watched any movie with commentary ever. And you know what? I dig it.
He references the TPM ending in the commentary... something to the effect of "I don't like it either but we had to do it".
He does. He actually said "I'm not proud of it either, ok?" I lol'd. The commentary is seriously great. I lol'd on more than a few occasions.