Every Tav has [Baldurian] responses, unless you're [Underdark] I think even Gith might get [Baldurian] responses, but don't quote me on that. Maybe someone who rolled extraplanar recently can fact check that for me.
So, no nothing added, but unless we get a customizable city of origin in the character creator, I've been going with that assumption.
Sidenote: the other tavern is the Blushing Mermaid, and a Volo's Guide to Inns and Guest Houses mentions The Blade and Stars in addition to the Mermaid and the Elfsong. So maybe feathering the nest for us.
I recently played a Gith. Gith do not get the Baldurian dialogue options. They get a dialogue option called Githyanki.
