I know there are already feature requests on the issue tracker for “instrumental version of” recording-recording as well as release group-release group relationships, but is there anything we can use in the meanwhile?
If the artist credit is the same for both recordings/releases, then it’s not really important, but if the original is credited to the vocalist and the instrumental to the producer then some kind of link is very helpful.
E.g. this release is a collection of instrumentals the production duo did for an array of different (sometimes obscure) artists. So far I only found the original version for one instrumental on MB (or rather I added it) and I linked it as “edit of”, is that acceptable?