What did the music in twelfth night do?

Answer 1

One of the reasons the music in Twelfth Night plays an important role is because the characters express their feelings through the songs some of them sing/play.

For example, Feste the fool likes to sing about the melancholy aspects of love, because he is in fact singing about him self and his own experiences. One of the songs Feste sings in Twelfth Night is about a man who is doomed to feel sadness, even when married. Many people think Feste was singing about himself.

However, afterwards, Feste often likes to brighten up the mood in a room afterwards by singing a happy song that the other characters know, so they can join in.

Obviously, Orsino listens to songs when he is in love with Olivia. <-- But that's a totally different question.