How can I get old instruments on Garageband so I can play my old files? I made a bunch of songs in Garageband a few years ago, on my old MacBookPro (ended up with Mountain Lion, I believe). When I open them on my new computer (a MacBookAir running Yosemite) some of the instruments (it's usually the drum kits) are not available. It gives me this pop up:



How can I get those old instruments so that these old files can be played and edited again?
The 4th column, Purchased. If it is empty that ends that unless you used a different Apple ID.