Respuesta :
The right answer is audio samples of music by the specified musicians (C).
This material would so help the reader to get what the author is trying to explain because he is clearly describing how some musicians play. So, if it gives audio samples for them to get why he dedicates his piece of art to these artists, the readers could get involved easily and understand the feelings that the author has for the musicians.
The correct answer is:
Audio samples of music by the specified musicians
Adding audio samples of music of the specified musicians would definitely enhance the idea of the writer in this excerpt, giving the audience a better taste of each music style of the musician he is talking about.