Music Theory
Music theory.net: Phrases and Cadences
An explanation of phrases and cadences with illustrated examples. Also provides audio clips, and a printable chart at the end of the lesson. By MusicTheory.net.
Music Theory
Music theory.com: Introduction to Chords
A description of augmented and diminished triads/ chords. Provides illustrated examples with highlighted vocabulary words,a printable chart, and audio clips to supplement the lesson.
Music Theory
Music theory.net: Generic Intervals
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.)
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.
Curated OER
Frequency Chart
Explanation of various keyboard tunings, and why modern Western music uses "equal temperament."
Curated OER
Chart
Explanation of various keyboard tunings, and why modern Western music uses "equal temperament."