spotify now allows artists to sell merchandise through the platform, which can include physical cds/vinyl and digital downloads. unfortunately, the currect version of musicbrainz does not allow for these links to be attached.

an example of a spotify shop link: https://shop.spotify.com/en-us/artist/4O15NlyKLIASxsJ0PrXPfz/product/pink-tape-digital-album-alternate-cover

(corresponding to this release)

we should have the option to choose between "purchase for download" and "purchase for mail-order", as well as having a link cleanup if needed.