for the music page, I'd consider embedding the soundcloud stuffclick the "share" button on the page for the track, hit embed, and I'd use the first, bigger one, because it can easily fit in with what you've already got there
IFrames are the devil
a feed from your facebook/twitter/instagram/blahblah posts would be neatyou could add a social media page or something and have them there
Dun wurry, ima doit.