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.)

Learn about simple intervals and compound intervals in this well writtern lesson. You will also learn how an interval is classified. Included are several self checking problems.

A description of intervals and how they are used in music. Provides audio clips and illustrated examples to supplement this lesson.

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.)

Flash cards are an excellent way to help you learn various topics. These online music theory flash cards can help you learn note names, intervals, notes on the piano and several other topics.

An exhaustive resource with everything concerning music theory. From ear training to music history, this site covers it all.

This is like a music theory textbook online. It includes great explanations and assignments, although there is not a way to check your completed assignments. It begins with the basics and goes through triads. Midi files are included.

Read about a math research project done by three college students which helps us see physics and math in music. Here's a great approach for integrating curriculum!

A series of 16 video lessons that teach basic guitar theory. Lessons discuss intervals, perfect and diminished notes, and octaves. Videos vary in length.

You will find many free games that will help you develop your music theory knowledge. Learn rhythmic dictation, key signatures and intervals as well as several other topics concerning music theory.

This column explains the importance of knowing your intervals both forwards and backwards. It also provides advice on how to use intervals in your musical performances.

This site is essentially an online music theory dictionary or encyclopedia.It teaches about intervals, chords and scales. Online sound clips really enhance site.

This resource presents a fun and interactive way to learn all about the elements of music. It offers links to information, definitions, assessments, and examples of melody, harmony and tonality, structure, tempo, metre and rhythm,...

This site provides music theory information on such topics as rhythm, intervals, scales, chords, etc. Also, there is a fine section which describes the basic concepts of form and structure.

An online beginning music theory and ear training site. This site is for students to use at home to reinforce what they learn in class.

An excellent online ear training tool is available at this website. Identify intervals, chords and short melodies.

To explain the concept of intervals and how to distinguish and classify the various intervals

To demonstrate how the harmonic series can illustrate the relationship between frequency and interval and the harmonic series

This site offers a very technical explanation of pitch. The author's emphasis is on tuning by intervals, explaining the different spaces of intervals by name. A very complex interactive diagram is included.

A music theory worksheet regarding imperfect intervals.

A music theory worksheet regarding perfect intervals.

A music theory worksheet regarding diatonic intervals and their relationship to pitch.

This site provides good online learning games and exercises for music theory. It also has a lot of options for teachers if they choose to subscribe.

This is a freeware software product that can help you develop your ear training. There is a basic and an advanced version of the program.