Music Theory
Music theory.net: Scale Degrees
A thorough explanation of scale degrees and the various names for each note. Provides illustrated examples and audio clips to enhance the lesson. Terrific resource for music students and teachers!
Open Curriculum
Open Curriculum: Minor Keys and Scales
To discuss the interval patter of minor scales and their difference from major scales
Open Curriculum
Open Curriculum: Octaves and the Major Minor Tonal System
To introduce the relationship between frequency, octaves, major, minor, and chormatic scales, and tonal music
OpenStax
Open Stax: Catherine Schmidt Jones: Scales That Aren't Major or Minor
As the title suggests, this site defines and gives examples of various other types of scales including chromatic, whole tone, blues scales and more.
Music Theory
Music theory.net: Diatonic Triads
Descriptions of diatonic triads: major, natural minor, and harmonic minor. Provides animated illustrations, and a printable chart at the end of the lesson.
Open Curriculum
Open Curriculum: Scales That Are Not Major or Minor
To explain the various musical scales that cannot be classified as major or minor such as chromatic, whole-tone, pentatonic, blues, and scales from non-Western music
Other
Music Theory First Aid for Struggling Students
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.
Other
Dr. Brian Blood: Music Theory and History Online
An exhaustive resource with everything concerning music theory. From ear training to music history, this site covers it all.
Other
Music Fundamentals
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.
Music Theory
Music theory.net: Key Signature Calculation
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.)
Music Theory
Music theory.net
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.
Other
Alien Travel Guide: Elements of Music the Basics
Fine site created for Canadian schools devoted to basic elements of music, including pitch, acoustics, time signatures, keys, and rhythm.
Wikimedia
Wikipedia: Musical Mode
This site from the Wikipedia Encyclopedia provides an encyclopedia article about modes in music discusses how their names were derived, lists the major and minor modes, lists characteristics of each mode and examples of songs that you...
OpenStax
Open Stax: Catherine Schmidt Jones: Half Steps and Whole Steps
Take a look at the two intervals of the half step and whole step and how they make up the chromatic and whole tone scales. This page includes a couple of self checking problems to test your knowledge.
Other
Teoria: Key Signatures
This site from Teoria's Books offers a short, easy to read article on Key Signatures. An interactive keyboard makes the learning more fun.