Do the apps actually get closed? Does the music start again when you wake up the phone? Might just be doze mode kicking in.
Ok, after almost 2 days of testing the CPU Awake app, this is my conclusion.
The app fixed my problem (and the problem it was not only with streaming music, also with own music from SD storage), I didn't note several changes on battery performance but the RAM consumption is around 100-110 MB, for me is too much and I cannot accept it.
So, because this issue and some SMS problems (on income messages, sometimes I receive it and sometimes I don’t) I will return to Nougat 7.1.1.
I will write again with another conclusion about it.
Have exactly the same problem with my Spotify premium account.
I can confim that it started after the upgrade to android 8.0.
What about a reaction from Nokia/Hdm are you working on a solution for this anoying problom?
Spotify Premium @ Nokia8: there were no problems on 8.1 beta, it started to shut down on 8.1 stable.
I have the same problem on my brand new Nokia 8 (with Oreo) and it's been driving me nuts. All music apps I've tried shuts down after appx. 35 minutes. I'll try the CPU Awake solution and see if it helps. I think Nokia are some of the first phones on Oreo, right? So maybe it'll get some more attention when Samsungs start getting updated.
The "Wake Lock - PowerManager" works for me, a Partial_Wake_Lock keeps the CPU alive, while I'm listening to music. Pfeeew. I needed that fix.