It came as no surprise when Twitter on Thursday launched Twitter Music, an app for iOS that helps users find what music their friends are listening to based on social recommendations. It\u2019s an interesting concept by the folks at Twitter, who just released Vine, a network that allows users to share six-second video. Unlike Vine, Twitter Music is full of plenty of Twitter branding and, even better, plenty of integration.Twitter Music is broken into four main sections: \u00a0"Suggested", "#NowPlaying", "Popular" and "Emerging" all intertwined in the beautiful user interface that Twitter has included. When first launching Twitter Music, you\u2019re asked to sign-in with your Spotify or RDIO account, so music you listen to through the app can be streamed at no cost. If you don\u2019t have access to either service, Twitter will provide previews through Apple\u2019s iTunes.The Popular section of Twitter Music takes the songs Twitter users are listening to across the network and ranks them in a numbered list going left to right. Psy\u2019s \u201cGentle Man\u201d is leading at the time of this review. Songs are connected to the artists\u2019 Twitter account, as one would expect.When clicking on a song (looks like a tile) you have the option to play it, go to the artist\u2019s profile page, or quickly follow the artist on Twitter. When following there\u2019s no dialogue box open, it is simply done at a click. When playing a song through Twitter Music, it automatically taps your desired service, be it Spotify or RDIO, and will play the song. It\u2019s worth noting, you must have a premium subscription to either\/or.The Emerging section shows the \u201chidden talents\u201d of Twitter and, quite honestly, we\u2019ve never heard of any of these music groups, but that\u2019s the beauty of it. \u00a0Suggested shows the artists you might like, presumably recommended to you by who you follow and what you tweet on the social network. Both have the same features as the Popular section: you can play a song, go to an artist\u2019s page, or share it with your Twitter followers.The section we\u2019re most fond of is the #NowPlaying. It takes what your friends have been sharing on Twitter and throws it into one mega-list. There\u2019s no numbering system here, it simply shows the songs that have been \u201ctweet(ed) by the people you follow\u201d. An icon of the person who has shared it is shown on the song\u2019s tile, so you can either thank them or berate them.Songs can be controlled by the play menu at the bottom. You can set the volume, play and pause, swipe between songs, stream the music elsewhere via Apple\u2019s AirPlay, or tweet the song.Those are the four main sections of the app, that can be swiped between by going left and right. Furthermore, swiping all the way to the right will bring you to your own profile, which shows your Twitter information such as tweets, following, and followers. The artists you follow are listed on the page as well. There\u2019s no keeping track of what you\u2019ve been listening to - it\u2019s actually pretty basic. There\u2019s no timeline in the traditional Twitter sense.The last of the features is the search functionality, which lets you search any Twitter user. You\u2019re presented with their Twitter Music profile, presenting basic Twitter information and the artists they follow, again, pretty basic. If it is an artist you can press the play button that will pull in tracks from the music service you selected earlier.Twitter also has a web version available for Twitter Music that works similar to the iOS experience. There\u2019s a menu in the top-left corner that offers access to the Suggested, #NowPlaying, popular, and Emerging sections, along with access to your profile page. The web and iOS versions are both the same interfaces.The first version of the app is a little buggy in some instances giving us force closes, but we expect that to be fixed quickly. Overall, Twitter has a solid product here: it\u2019s beautiful, works well and serves a clear purpose. The audiophiles of Twitter will cling to this, but it only works to its full capacity if you\u2019re signed up for either RDIO and Spotify. Twitter promises it is working to add more services.Like Vine, Twitter has provided no word on an Android app, leaving those who prefer Google\u2019s ecosystem in the dark. Will this kill radio services like Pandora or Slacker? Probably not, but it does cater really well to those who have the same taste in music as their friends. If you don\u2019t, you\u2019ll find some really weird new tunes.