Amazon.com: Lightning to MIDI Cable USB OTG Type B Cable for Select iPhone, iPad Models for Midi Controller, Electronic Music Instrument, Midi Keyboard, Recording Audio Interface, USB Microphone (6FT) : Musical Instruments
iRig Keys I/O is an audio interface and MIDI keyboard controller for $199
Amazon.com: Icon - AIO6 USB Audio Interface and Midi Controller : Musical Instruments
iRig Keys I/O is an audio interface and MIDI keyboard controller for $199
Reloop Mixage Interface Edition MK2 MIDI controller | Bax Music