Wikimedia
Wikipedia: Music Theory
Wikipedia offers detailed information on music theory, a set of systems for analyzing, classifying, and composing music and the elements of music.
Northern Arizona University
Northern Arizona University: Sojurn: How to Analyze a Fugue
This page is very helpful in analyzing and understanding fugues. Great site for music theory students and teachers.
Other
Creating Music
This online, interactive environment for music creation and exploration includes games and puzzles and interesting activities that teach about music in a visual way.
Quia
Quia: Musical Elements
A great matching game to reinforce music vocabulary and an understanding of the elements of music.
OpenStax
Open Stax: Catherine Schmidt Jones: Melody
Learn about one of the basic elements in music, melody. Discover the ideas of melodic shapes and phrases as well as motifs and themes, and how to present these topics to children.
BBC
Bbc: Music Theory
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,...
PBS
Pbs Learning Media: Math + Arts: Fractions in Music
In this lesson, students explore the relationship between fractions and musical pitch. Media resources and teaching materials are included.
Toby Rush
Music Theory: Species Counterpoint: Melody [Pdf]
A music theory worksheet regarding species counterpoint and melody. Requires Adobe Reader [PDF].
University of Illinois
University of Illinois Urbana Champaign: Learning Musical Elements Through Listening
This is a site created for teaching children the art of listening to music. Includes sections on the elements of music, composers, and genres with more under construction.
ClassFlow
Class Flow: Introduction to Polyphonic Singing
[Free Registration/Login Required] This flipchart contains a step by step introduction to rhythm, melody, and polyphonic singing through the use of several canons.