I don’t think you can. You can train Roon radio (see the ‘How do I customize my Roon Radio queue’ section on this page), but I don’t think you have any greater control beyond that.
I have exactly the opposite problem. I love opera, and listen to it often. no matter the work, no matter the recording, no matter the period, no matter the composer, Roon always plays the Mahler 3rd Symphony afterwords.
and always a specific recording of Mahler 3:
it’s virtues notwithstanding, the opening of the first movement is not what I want to hear after, say Mimi’s death, or the quiet finale of Boccanegra, or the sublime reconciliation at the end of Figaro.
I should probably just listen to it all the way through sometime, maybe Roon would stop.
happened again last night, after the sublime ending of Parsifal. there was a brief interlude of the opening strophes of Picture at an Exhibition (Ravel orchestration), then BAM! Jansons and the Bavarians slammed into Mahler 3.
I actually tried setting the ROONRADIOBAN for some particularly annoying orchestral bangers but roon just finds another one.
Roon radio for Classical just doesn’t make distinctions between sub-genres at even the most rudimentary level. There are variations on this request going back years.
In my case when listening to small forces chamber or vocal music I don’t want radio to follow up with large forces orchestral or opera.
I don’t know how roon decides. Maybe I haven’t even kept radio on long enough with Classical to hear a pattern. Mostly at home I play quieter piano, chamber, lieder, choral, usually post-romantic and modern. Roon rarely continues the mood. Sometimes I get lucky with a track or two but then there will be some huge, loud orchestral piece and I switch it off. As a rule, if I remember, I now switch radio off when listening to Classical.
I haven’t personally noticed a weighting towards Opera. Maybe we are all getting a different playlist? My impressions are that roon doesn’t make simple distinctions between chamber/orchestral/period/instrumentation. It’s all just lumped together as “Classical” regardless.
You can exclude Opera by using the tag ROONRADIOBAN in your local library. But it will not make much of a difference if you have a streaming service.
Interesting. I lazily listen, without interfacing much with Roon. When I have a chance to use the thumbs up/down, I do. I (naively?) believe I am having some effect. I’m still sung at sometimes, which I find mildly objectionable.
I know people have doctorates in this sort of thing. I can imagine it’s not trivial. Personally I find Roon radio significantly better than Spotify or Qobuz apps in this respect.