Idagio looks pretty awesome. Do you know who's behind it?
My only complaint so far is that they claim that one of the reasons for creating Idagio is that the main streaming services are track/album-oriented, implying that Idagio does this better. But if I go to an Idagio album (here [1] is a random example), there are just tracks. If I view the same album at Apple Music, the album is nicely divided into works [2], and also annotates each track with the composer.
I do love the ability to browse by work and find matching recordings, though.
I guess they have the metadata - if you click on the work [1], you get only the tracks that are part of it [2].
Idagio seems to be a company located in Berlin! [3]