An explanation of key signature calculation for advanced music students. Discusses the use of sharps and flats in music composition, with illustrated examples. (You may need to download Flash player to view this site.)

A thorough description of generic intervals with a printable chart at the end of the lesson. MusicTheory.net provides illustrated examples, and highlighted vocabulary terms. (You may need to download Flash Player to view this site.)

A terrific reference for music students and teachers! Explains the fundamentals of the major scale, provides diagrams, and audio clips to help children recognize this piece of music theory.

This online quiz is a fantastic tool to check your knowledge of intervals. Keeps score, and can be customized to fit specific lessons (augmented intervals, diminished intervals, double accidentals.)

Listen and learn with this explanation of minor scales. Each description of harmonic, melodic, and minor scales provides an illustrated example, and audio clips.