This Web site contains all of the images, languages, and sounds on the Voyager Records:http://re-lab.net/welcome/
As for the music, while it is not reproduced, the selections are listed and you
can probably purchase most of them. You would have quite a collection of eclectic,
global music as a result, to be sure.
BTW, some of the sounds and music on the Records can be heard on the Cosmos