Reset "Music Just for You" when asking via HomePod

When I something like, "Hey Siri, play music" on my HomePod, it is really common for me to get genres that I don't listen to and in some cases have never listened to, except when asking for play music.

This goes along with, I ask for a specific genre or a specific artist and the first piece plays from that artist, and then sometime along the next several selections the entire genre will change.

Specific example: "Hey Siri, play music by Samuel Barber." And Siri helpfully plays 'Adagio for Strings by London Symphony Orchestra'. Then, several selections later, it's playing other selections that are similar from other composers, which still is not problematic; good thematics. I get that and I'm fine with that. Then a few selections later it's Cupcake singing about things I never asked for.

The ONLY relationship are discussions in the study where the homepod is located regarding music styles and in several music groups that I belong to on various platforms. I belong to several music interpretation and history groups that discuss styles. The memberships and discussions are diverse and eclectic. We enjoy discussing many topics and can laugh at my old fogey stuff that includes anything from Bach, Barber, to Beatles, Beach Boys, Bauhaus, and Black Sabbath.

Discussions include any variety of genres and are intended to better understand the music that helps to bring people together and can separate people as well.

However, I don't have many playlists in Apple Music; none that I know of that feature this artist. I don't recall ever requesting her or others of this specific sub-genre. I do have an extensive library in Apple Music that includes several thousand artists from across the ages.

What's going on and how can I correct it? Is there a way to reset Siri? I don't understand the algorithms or AI behind "Music just for you."