Version 1.1 adds MIDI control capabilities by using the Apple Core MIDI features found in iOS 4.2, via the Apple iPad Camera Connection Kit. Users can now play the MS-20 Synth and tweak the onscreen knobs(The parameters are controlled by MIDI control change data. The MIDI control change numbers of iMS-20 are fixed) using external MIDI devices(Some USB bus-powered MIDI devices need a USB hub with power supply).
Users who also own an MS-20 Controller (bundled with the original Korg Legacy Collection software) can use it for patching cables. The six-part Drum Machine can receive different MIDI notes per part.