Pacemaker has partnered Spotify to launch the Pacemaker for iPad.
The new Pacemaker for iPad aims to let you DJ without the need to buy expensive gear, or be limited to only use music from local files. With Spotify's music library built right in, users can mix tracks from both iTunes and Spotify, and opt to upgrade and buy effects, filters, and extended functionality. The app comes with a Spotify Premium trial so that you can start mixing right away.
The Pacemaker for iPad can be downloaded for free through the App Store.