Last.fm iOS and Mac OS X SDK is a development kit created Kevin Renskers. Using the SDK, developers can work with blocks, use only KissXML as a dependency, return values in correct data types, hook catching methods, and cancel operations. This kit is actively developed and maintained and used in the official Last.fm Scrobbler app. Other apps using Last.fm include MetroLyrics and Radio.com. Requirements to develop include iOS 4 and Xcode 4.4 or higher, an API Key obtained at last.fm/api, and Kiss XML.
It used to be that if you wanted distribute and promote your music, you needed a label or manage to get your music in the hands of those that would be interested. Now, that's completely old hat and these days, bands are able to handle production, distribution and promotion in a way that is both genuinely engaging and highly effective. OneRPM is a powerful tool in the way of digital distribution. Create an account, upload your content, manage it, and distribute it to ever major and minor digital outlet around--now including Facebook.
For music enthusiasts who thrive on insider knowledge and detailed music conversation, WhoSampled would be just their cup of tea. It's basically an online community for discovering and discussing sampled music, remixes and cover songs. WhoSampled has partnered with The Echo Nest to provide the WhoSampled API that allows developers to access and integrate its functionality with other applications.