Duet + Spotify (non premium) or Pandora

Hi
I'm a novice on this forum... I've had my duet for a long time, and still love it. Just discovering Spotify/Pandora internet services (mostly listen to my own music)...
I'm running LMS 7.7.2 on my computer, and everything connected via home wireless network.
Haven't upgraded any software for ages (years) because everything just 'works'...
But...

Now I can't seem to get Spotify (non-premium) or Pandora. I've looked on the mysqueezebox app list, and see that you need Spotify Premium to use that app.
Is there a (3rd party) way I can use the 'free' account with either of these services, on my duet?

I've looked through old posts, and found many references to Triode's Spotify plugin, but it doesn't seem to exist anymore...???

Any help would be appreciated!!

Thanks.

Rob