Virtual MIDI in BeatMaker 2 is a little bit more confusing than in other apps, so I thought I’d make a walk through to clear up any confusion. Virtual MIDI has opened up iOS music making to several interesting and useful possibilities. You can record synths that don’t have MIDI sequencers, experiment with new synths for your track using a sequencing app like BM2, or make an entire song using sounds from several different apps at once by controlling them all with Genome MIDI Sequencer. This tutorial should contain everything you need to know to get BeatMaker 2 controlling other Virtual MIDI apps.
The article has solid tips, helpful pictures, and even goes into configuring Sunrizer and Cassini for receiving MIDI.