I am thinking of buying a second-hand Ipad (probably a Mini) so that I can edit music that I have created on Garageband on my Macbook Pro while I am travelling. For instance, I may want just to play some tracks of a song and play live over the top, or record in some different tracks. Will this work? Will Garageband on an Ipad cope with my Macbook tracks? Do I need particular specs? I've not used an Ipad before so I have no idea what is possible.