Tags like <member> and <guest> apply at the album level. But on a multi-disc set, they only iterate over the first disc. When bands change their members and issue greatest hits discs, it can happen that the band members aren't the same from one disc to another. This is also the case on compilations by various artists.

I tried enclosing the tag within <dax:volume> and </dax:volume> but that just created two copies of the band members from the first disc.

<daxroducer> seems to work when enclosed in <dax:volume> and </dax:volume>, but it only returns <daxroduction> entries assigned the specific role of "Producer." Likewise <dax:engineer> for "Engineers". But there seem to be no similar tags for the members and guests. And, if I recall earlier reading, tags like <daxroducer> and <dax:engineer> are deprecated in favor of <daxroduction>.

Is there a way to get all the band members from all the discs of a multi-disc set? If not, is this planned?

Thanks.