Spotify vs Tidal.
Is there a sonic difference. "Absolutely."
But if your using very very good Quality DAC/Pre-Amp/Amp & speakers.
The EAR is more easily Pleased! with either streamer service.
I subscribe to both. Now on Spotify: Classical. Violins little less timber & sweetness. Horns a little less brassee!. Piano not all that much. The high Freq range instruments is were the missing kbps are lost anyway.
Female voice depends widely on the recording. Ex: Diana Krall
Tidal slightly less husky.
Heir's is all there. Just a little less throaty with Spotify.
My bottom line is." I can find no great loss of measureable pleasure when playing Spotify. Why both services. Easy, each has recordings the other doesn't offer. If I want to hear an old artist.
K-BPS isn't going to stop or effect me!!.