Welcome to the Classic Edition of Ricci Adams' Musictheory.net.

This site provides older versions of the main site's content. It is intended for users who cannot view the new content due to outdated web browsers, or for teachers who have not yet updated their lesson plans.

To view the classic content; please select a lesson, trainer, or utility from the lists below:

Translations and screen-reader-accessible versions of the lessons are available.

Finally, a downloadable offline edition is available.