The reason for this post is that I just remembered this edit some time ago.
The performer is the group Berliner Saxophon Quartett consisting of 4 members. I had added the group and the 4 persons as recording artist to the recording. In the mentioned edit, the group was removed with the argument that it is already credited in the recording artist field. As this argument still feels wrong to me (is it covered by some official guideline?), I would like to have a discussion about that.
I think it would be better allowing to add relationships to the recording without any restrictions coming from the entry of the recording artist field.
Simply because the relationships offer much better possibilities for giving structured data, like the actual role of the artist. In fact, it’s not too clear to me why we need an recording artist at all. Relationships can everything the recording artist field can, plus much more.