Okay so I am in the planning stages for an erotic audio series that I wanna start posting here.

Episode 1 begins with a birthday party, and I want it to include a bunch of people singing Happy Birthday who are not going to be part of the episode after the singing. The main cast of the episode involves maybe... Two other people?

I'm wondering - when I eventually get this made and posted, do I have to include the birthday singing guests in the tag showing the makeup of my cast? Supposing that the main cast is me and two other women, would a [FFF4A] tag be appropriate, or do I need to include however many birthday singers I get in the gender tag? Should I have [FFF4A] and then a tag saying [chorus] or something to show that there's a mixed-gender Happy Birthday song at the beginning?

When I do post this, I fully intend to give credit to my chorus. I plan to do it by listing the username of every person who sings Happy Birthday under a "Special Thanks to my Happy Birthday Chorus" credit line, so that their work contribution will be recognized. But like. This is a question about the tagging thing.

TL;DR - How do I tag a huge guest appearance that lasts less than 30 seconds? Do I have to list those in the required gender tag or is a tag for just a multi-gender chorus acceptable in this circumstance?