I’m bringing you the free content available at Music Theory! You can check out introductory and intermediate lessons as well as ear trainers and books!
If you look at the main page, you’ll see Explore our Free Online Content with a line drawing that shows what content is free: Lessons, Exercises, Tools.
If you click into Lessons, you’ll see a long listing of lessons that start with the Basics and progress in difficulty.
Exercises gives you several different ways to practice (visual and auditory) with staff identification, keyboard identification, fret identification, and ear training.
Tools offers you calculators and utilities to help you in your studies.
This is a great way to dive into music theory, so check it out today.