not all artists displayed

[alfreddo12]

I have a problem with three albums (Gabetta, Il progetto Vivaldi 1 to 3) recently acquired as WAV download, each of which I burned to CD and then ripped to FLAC using dbpoweramp.

Before ripping the 1st album, I completed tags for album artist, artist, soloists and orchestra tags as follows:
album artist Sol Gabetta / artist Sol Gabetta; Sonatori de la Gioiosa Marca / soloists Sol Gabetta / orchestra Sonatori de la Gioiosa Marca

The entries for the same of the 2nd and 3rd albums are:
album artist Sol Gabetta / artist Sol Gabetta; Andres Gabetta; Cappella Gabetta / soloists Sol Gabetta; Andres Gabetta / orchestra Cappella Gabetta


Whenever I use nstream (or Kinsky as an experiment or my daughter's BubbleUPnP) to search the artist field of Minimserver, only Sol Gabetta shows up; On the other hand, the other artists in the artist tag simply do not seem to exist as artists. The Ensembles which I entered into the artist and the orchestra tag are however displayed in the orchestra field of the control point. In the case of the 2nd and 3rd album, the situation is the same with regard to Andres Gabetta who does only appear in the in the soloists field of the control point.

When I choose any of the tracks for replay, the "now playing" section of the control points seems to display the artist information correctly, i.e. "Sol Gabetta / Andres Gabetta /Cappella Gabetta" when using Minimserver.

I assume that there could be something wrong with the files, but in the mean time verification using a different tagging software (dbpoweramp-EditID, puddletag, mp3tag) did not show anything striking.

Any idea as to where I would need to inquire further ?

Many thanks, Alfreddo12