Gonna break it down even though I can't come up with an answer right now. xD

Not a place of concrete sculpture - I'm thinking this could be a reference to a location. Maybe Centra or Trabia Garden...

Not a fake drummer for a lettered band - No idea.

Not an unorthodox church hymn choice - Probably a reference to a song within this location. Can't think of one right now that might sound religious.

But her femininity is there to see - A female character.