Here are quotes from the article "How to Make Music on Your Smartphone", featuring IK's iRig MIDI 2:
"Sometimes it's not the sound of a traditional instrument, but the feel that a musician's after. That's why MIDI keyboards, controllers and other devices are also popular among home recordists. A device like the IK Multimedia iRig MIDI 2 allows you to hook up an actual MIDI keyboard to your phone. You can then translate the result into a track in GarageBand or another music app."
Read the article about making music with your smartphone from FoxNews.com.
Learn more about controlling music creation apps, using MIDI controllers and making music on your smartphone with iRig MIDI 2.