This is a web app designed to help you with the generation of the twelve-tone matrix for composition or analysis of those works. My motivation was that writing out this matrix could be time consuming, and people could make mistakes writing it out, while a computer could do it instantly and without error.
Check out this link for more info on the subject: https://en.wikipedia.org/wiki/Twelve-tone_technique
Made with ReactJS and React-beautiful-dnd.