http://www.irigkeys.io
iRig Keys I/O is compatible with music production software from Apple, including Logic Pro X and GarageBand.
After installing the appropriate Control Surface plug-in for your Mac, you will easily be able to control Logic Pro X or GarageBand directly from your iRig Keys I/O.
Download the iRig Keys I/O software from the "My Products" section of your User Area (you must first register your iRig Keys I/O product). http://www.ikmultimedia.com/userarea
Learn more about iRig Keys I/O at http://www.irigkeys.io