Earlier quoted context omitted.
Great, yet another attempt at solving this with yet another standard that not everyone will use. Why did you pick this attempt instead of something more common like Gracenote?
Gracenote is owned by private equity and has limited availability of data. I prefer to encourage the use of more open data. MusicBrainz or Discogs would have been better choices than Wikidata based on quantity of entries. Though in 5 minutes I have been unable to find if Discogs even has external IDs, and I am not sure of the quantity of Spotify IDs that MusicBrainz has.
So, we really have not made any forward progress here