The phoenix appeared because of the music, which Princess Consort had already mastered when she was unmarried. So Gu Chaoyan eavesdropped on the music and mastered it herself. That was why she was showing it off at the pitch.
Gu Chaoyan had always had a bad reputation, so the Second Lady of the Chu Family did not think that it was surprising when she heard the story.
When she thought it through, she looked at Gu Ruxue, wondering whether the Princess Consort was indicating something to her when she talked about this story. So she stood up angrily. "How dare she! Gu Chaoyan is way over the top! She stole the music and took it as her own, and now she takes the achievement so that everyone says that she is the good omen! She is scamming the civilians, I am going to reveal the truth!"
The Second Lady of the Chu Family got increasingly excited as she talked about this. She had already foreseen how much the Princess Consort would like her if she did it well.