Hi Oscar. I run musicindex.org, a music index of V4V feeds. Fountain feeds are the best case in it: each of the 330 Fountain albums names its publisher feed, and the 70 Fountain publisher feeds list their albums back. Only one fact is missing: whether the publisher is the artist or a label.
Would Fountain write rel="artist" or rel="label" on both sides of a publisher link? The publisher chooses once: Not stated, Artist or Label. "Not stated" writes nothing. Kolomona proposed the attribute in namespace discussion #579, and it waits for implementations:
Does anyone have any links to documentation or podcasts about the #wavlake music spec? I want to eventually make my music Wavlake-compatible. Unfortunately, I'm still using the old deprecated RSS spec.