Hint: Apple currently uses a .caf format for loops. If you have logic, you can load these into a track, open them in the sample editor and save them as aif files. This gives you access to all your jampack files included in Logic Pro or purchased individually. You may want to add tags in the apple loop utility as they are not saved. If anyone has a simpler conversion process I'd love to know it.
Also, pitched loops are tagged with a scale and key. You can sort on key in the loops browser or see both easily in the apple loops utility (audio>open in Apple loops utility).
What I do not know is how to transpose a loop and *save* it as a new loop. Any ideas? Also, it would be great if there was a way to do the transposition in EigenD directly and as easily as time stretching (ie: if EigenD read the key info and transposed into the presently selected key)