In my travels, I've record friends along the way into Garage Band. When getting home I've opened the project(s) in Logic 9 and done some editing. I would like to send the multitrack recording (sweetened in Logic) back to my friends in Garage Band. I've found that copy/paste; drag and drop do not work for me; nor can I open the Logic file in Garage Band. I do want to keep the multiple tracks when I open it in GB. Any suggestions on how I can do this?