How does music play a part in this story?

Jazz is an allegory of acceptance and freedom. Henry and Keiko wanted to be accepted by the society, dreamt of being treated equally, hoped for friendship, but the society was not ready to tame its bigotry. Henry likes jazz “because it is so different, but people everywhere still like it, they just accept musicians, no matter what color they are”. If people can like something as diverse and unique as jazz, they can also try and get rid of stereotypes.