A Mapping Between Musical Notes and Colours
The use of colours to represent notes is very popular in the classroom and teaching studio. The colours I have used on the Circle of Fifths have been taken from a blog post found here {link}

Bibliographical References
Anon, (n.d.). A mapping between musical notes and colors – nothing to see here. [online] Available at: http://www.endolith.com/wordpress/2010/09/15/a-mapping-between-musical-notes-and-colors/ [Accessed 20 Jun. 2020].