I'll stick with Tweetie. Just enable the Twitter app from Facebook as well. Type #fb at the end of a tweet and it also goes to Facebook. Most music apps can link music.
I'll stick with Tweetie too. There's almost too many Twitter apps now I think. Also, I noticed that on the second example pic for this app there's a Kanye West Tweet of some kind. He's not a very popular man just now.