Years ago when I was still using iTunes the software was able to automatically create a full playlist based off a few tracks. It was really good at it. If I gave it a few 90s alternative rock tracks it could build a playlist off 20-50 tracks that would fit perfectly together. Same genre, tempo, mood. It wouldn’t insert any slow jams if the tracks I included were upbeat. It wouldn’t include any 90s pop or rap. It was able to create great playlists for running, chilling, house parties - anything - comprised tracks that fit together really well
I would love it if Roon Radio could do something similar. Right now it’s too broad/loose in its selection of tracks. Maybe it doesn’t have access to the same level of detailed track data that iTunes did back then?