One of the leading concert search services
SonicLiving has launched a nice and quite useful for music lovers service -
Tweetlouder .

What is its essence.
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You have a favorite musician or group, and you would like to follow its updates on Twitter, but for some reason you cannot find it or you simply do not have enough time for it. This is where Tweetlouder helps you.
The procedure is very simple. You connect using a twitter account, after which you are invited to scan your iTunes, Last.FM or SonicLiving directly for your favorite musicians. You can also enter the names of groups, projects or artists in the special input field. The service makes a list of those he found in yours, for example, iTunes and Twitter, and offers to add them.

Then you simply choose who you want to follow, and voila. All is ready.

As a result, a very easy to use and interesting service. Not without flaws, of course. For example, if you do not give access to your accounts, but simply enter artists with pens, then the base is not very large yet. And sometimes a bunch of iTunes is buggy. For example, I failed to integrate them the first time. But you can add any artist yourself. And thereby help the development of the resource.