)...there's a serious dance party happening at idol right now — Ryan Seacrest (@RyanSeacrest) April 11, 2013 
 
 just listening to @jamesblakeon @twitter's new music app. And the biggest winners here might just be Rdio and Spotify, since the app experience reinforces just how strong they and other discovery services like Songza really are. After testing the app with music artists and influencers, Twitter #Music will be available starting today at https://music.twitter.com and as a separate app for the iPhone through the App Store. That’s because your recommendations, when not culled from the general public data of top trending artists (the “Popular” tab) or up-and-comers (“Emerging”), is instead drawn from the pool of artists you follow on Twitter. And, of course, you can tweet songs right from the app.The songs on Twitter #music currently come from three sources: iTunes, Spotify or Rdio. Consider that without Rdio and Spotify, you’re not going to be able to access full tracks through Twitter #Music, only 60-second iTunes previews. Twitter #Music is great-looking, both on the web and on the desktop, and it works well enough once you have an active Rdio or Spotify account.
– Twitter officially joined the crowded world of online music today with the launch of its Twitter Music app. The premise is to help users find music via Twitter in a few different ways—through the bands you follow, what's trending on the site, what your connections are listening to, etc., reports Good Morning America. For now, it will draw from Pandora, Spotify, and iTunes, the company says in a blog post. (Business Insider offers a run-through of how the app works. "It's gorgeous," writes Steve Kovach. It's available on iTunes, but Twitter says an Android version is on the way.) Some initial reactions: Darrell Etherington, TechCrunch: It's "great-looking, both on the web and on the desktop, and it works well enough once you have an active Rdio or Spotify account. ... But for the average user looking for a way to discover new music, the field is rich and Twitter #Music’s current capabilities are relatively paltry." Brian Barrett, Gizmodo: "The most appealing part of Twitter Music at first blush seems to be the easy breezy discovery of what complete strangers—some of them famous—are listening to at any given moment. Less appealing? The fact that it's cordoned off as a separate app (or browser tab)."