Hi,
It was just me, an official and a another public servant so there was no singing. As far as i remembered it went something like this:
- show two pieces of ID
- answer some questions about citizenship responsibilities
- take the oath (you get prompts, there were only me, an official and another public servant there)
- cut the PR card
- show landing record/IMM 1000 (i'm not sure why, but since I don't have anything else until the citizenship confirmation arrives, not sure about the details)
- sign paper and post or sign pdf electronically and email