As per our contract with Amazon, we're to add links to SoundUnwound from our artist and release pages External Links section. The link structure is as follows:

Artist Page (Radiohead) : http://www.soundunwound.com/music/radiohead/mb:a74b1b7f-71a5-4011-9441-d0b5e4122711
Album Page (Arcade Fire - Funeral): http://www.soundunwound.com/music/arcade-fire/funeral/mb:26cdc327-38f2-4200-b5dc-f2fa0e13fcfe

The name of the artist/release is included in the URL since Amazon does not have pages for every single MBID. If we send a user to a SoundUnwound page that doesn't exist, they carry out a search with the provided artist/release name. The example above isn't entirely consistent (e.g. arcade-fire) – simply URL encode the aritst/release name for the URL and send it along as is.