Hi dajand, Holladiewaldfee & Tall Person,
I looked at this Spotify issue at the weekend. It is certainly broken, in my case it logs in correctly and returns one useless entry. Several weeks ago, I received an email from Spotify announcing their new improved user interface. This thread started at about the same time.
It seems that the latest user interface enhancements have effectively killed libspotify and therefore also spop which Rune uses to access Spotify. The libspotify library was ‘depreciated’ (unsupported) since 2015, it has not been working correctly for some time, so it’s not totally unexpected that it has now finally stopped working.
There is a potential solution for someone with the skills and time. There is a newer Spotify library which is supported called librespot. This is not a product from Spotify, it has been reverse engineered from the Spotify interface itself, so it is unofficial. Almost all current Spotify related products for Linux use it. If someone would re-engineer spop to use librespot instead of libspotify we would have a working solution. An alternative could be to re-engineer libspotify to use librespot.
janui
Edit:
I have contacted Thomas Jost the maker of spop. Don't expect a fast solution. He says he will probably look at re-engineering it using librespot, no certanty that it will work, or when he will have time to do it. If someone has the skills, time and motivation to help you could contact him via:
https://github.com/Schnouki