http://www.pointblankonline.net/courses/ableton-live-courses.php In this tutorial Danny J Lewis breaks down the connection process when recording material from your music apps into your chosen DAW (in this case Ableton Live). He uses a camera connection kit to connect a MIDI keyboard to bring a traditional method of inputting note data, and a simple stereo mini jack to 2 x mono phono jack lead to connect the iPad to your audio interface.