This is a music theory site that I have used with my students for years. The site has three sections: Lessons, Trainers, and Utilities.
LESSONS:
- The Staff, Clefs and ledger Lines
- Note duration
- Measures and Time Signatures
- Rest duration, Dots and Ties
- Simple, Compound and Odd meters
- Scales and Scale degrees
- Much more
Trainer
- Note
- Key
- Interval
- Triad
- Keyboard
- Guitar
- Brass
- Interval Ear Trainer
- Scale Ear Trainer
- Chord Ear Trainer
The trainer section is the area I use the most in working with students. For example, the Interval Ear Trainer will play two notes, one at a time. You select from a list what the interval is. The program keeps a running grade/score and, if you give a wrong answer, the correct answer will appear. I use this trainer for my voice students. My students tell me that this training also helps them in the school choir when they have to sight read new music.
Utilities
- Chord Calculator
- Staff Paper generator
- Matrix generator
Go to musictheory.net and try it out. It is free, and one of the best theory sites I have seen and used.

