For a Playlist Project for the book Emma for a class presentation, where I find fitting modern songs relaying the theme or stage of Emma's development for each significant event in the book?
You might consider turning to the movie Clueless for inspiration for your modern song project; this movie is a modern day adaptation of Jane Austen's classic novel. For Mr. Knightley's discussion with Emma about Harriet, you could use the song "Talk" by Coldplay. One of the lines "I've been trying hard to reach you, 'cause I don't know what to do" could be used to show how Mr. Knightley does not feel like he is getting through to Emma. For the Mrs. Elton welcome dinner, you could use Ashanti's song "So Over You" to describe how Emma feels about Mr. Elton and his new bride.