How to connect Ipad to xjd-xz

I am knew to the xjd-xz controller.  does anyone know how to connect an ipad.  ideally i'd like to dowload the rekordbox software onto my daughters ipad so she can use itunes to dowloand music.  Does anyone know how? 

• Use the iPad to prepare music using rekordbox for iOS (available on the App Store).
• Then export your prepared tracks/playlists to a USB drive and plug that into the XDJ-XZ.
• Or, use Apple Music or iTunes on the iPad to purchase music, sync it to a desktop Rekordbox library later.

Repo Game