Spotty with ReplayGain

When listening to a Spotify playlist containing recent recordings and recordings from the eighties, there’s a clear difference in volume.

All of my players are set to “smart gain”. When playing back local files, the volumes are similar, so I think this is a Spotify-specific problem.

Additionally, for each player I have ReplayGain enabled in the Spotty options. (Aside: It took me a while to find this option, and I’m not sure that it’s helpful for it to exist. I feel like it should default to on if ReplayGain is active for the player)

I notice that running “ps” mentions “spotty --enable-volume-normalisation …”, which seems correct.

Any ideas? Does anyone have this working?