For staying up to date with band tour dates, live venue information and more, Pollstar has it covered. It's a trade publication that covers music industry information on a worldwide scale. What's pretty cool is that Pollstar provides an API that allows third party developers access to the full event database, enabling them to include Pollstar data on other websites and applications.
Last December, Senzari launched the MusicGraph music recommendation and data access engine as well as the new MusicGraph API. Earlier this month, Senzari opened the MusicGraph API to the public, unveiling the API at the first-ever annual SXSW Music Hackathon Championship. Among the apps included in the list of overall grand prize finalists is Party Play which uses the MusicGraph API to create "a dynamic DJ for parties."