Thanks Kal for your reply.
Setting up piCorePlayer is some more work than the other candidates. I desperately tried to get MCh being played over HDMI (on the TV), so far without success.
I’m not sure if Squeezelite - as the basis of piCorePlayer - can play MCh in the first place. And roon didn’t “see” the piCorePlayer either, allthough I switched off LMS on the piCorePlayer. Maybe with roon as the source it would be different (but why I should it?). So I couldn’t try that path yet.
Maybe it would make a difference by installing the native roon bridge support as described here: Roon Bridge on PiCorePlayer - #22 by Aldos_Zxz
Today, it will be volumio’s turn. But I have little hope, apparently a Pi4 would be more appropriate for this task. But there is just too much reading to be done to understand everything that goes beyond the obvious features.
So if anyone can tell I’m trying in vain…