Home Fellowship Gathering?

I've been thinking of having my Sim start a home fellowship gathering in her home. Modeling it after the Saturday morning men's group that I'm in IRL, the group would meet in my Sim's home, start with breakfast, then have a time of group singing, followed by a time of study/discussion. The maximum group size (to get everyone to do things together) is 8, so I figured that would be a good size for the gathering, even if it's possible to invite more guests to some events.

Breakfast - Inviting everyone over and serving breakfast is easy. My Sim has hosted plenty of dinner parties.

Singing - This I'm less sure about. The ads for the Adventure Awaits expansion pack showed Sims singing around a campfire, while one Sim played the guitar. Something like that would be great, only they wouldn't have a campfire. They would be sitting in my Sim's home.

Study/Discussion - This I'm less sure of. Can Deep Conversation happen in a group? Or maybe my Sim could use the Tell Story action, but it's really more "book club" and less sermon. Maybe I could have them read a book together?

The Get Together expansion pack adds Clubs, which look like they might help with something like this. I might even be able to model this after one of the existing Clubs (book club, singing club, breakfast club, etc.). Is there a particular expansion that adds group singing (my Sim playing guitar and everyone else singing along)?

Right now, I'm playing the vanilla base game. If there are particular expansion packs that would help make this kind of gathering easier, that would be good to know. But I'm just starting out, and don't want to add dozens of expansions.

Thanks in advance!