A-Natural Atonality - Claims that atonality is unnatural while tonality is acoustically and historically natural..
The Ancient Musical Modes - Ideas regarding the "classical modes" described by Plato and Aristotle..
Atonal Set Calculator - Interactive atonal set calculator for pitch class sets and twelve-tone rows. Enter one or two sets and find normal order, prime form, Forte number, interval vector, and symmetry..
Auto-Transposer - Transposes all twelve major keys of chord progressions..
Essentials of Music Theory - Summarizes entry-level music theory through advanced topics. Includes beginners' drills..
The Fugue - An outline of the fundamentals of a fugue based on Hugo Norden's "Foundation Studies in Fugue.".
Fugue No. 17: A-Flat Major - Introduction to the essential concepts of Schenkerian analysis applied to the Ab Major fugue of Bach's Well-Tempered Clavier, Book I.
Harmonic Bindings - A paper about the unification of Janecek's theory of imaginary tones with the two Risinger's principles of functional relations..
Harmony.org.uk - By Tom Sutcliffe. Aims to help students of music theory understand the role of chord progressions in musical structures. Site includes animated demos..
Interactive Circle of Fifths - A free music theory tool designed to help musicians interpret chord progressions, easily transpose music to a different key, compose new music, and understand key signatures, scales, and modes..
Interval and Chord Ear-Training - This site drills ear-training (aural skills), focusing on the aural recognition of musical sounds, including intervals and chords..
The Method Behind the Music - A resource for music theory, music history, the physics of musical sound, and conducting..
Modes and Scales in Indian Music - A historical look at concepts of Indian scales and modes comparing North and South Indian approaches..
Music Acoustics - The science of music. Explanations of how musical instruments work via waves and frequency modulation..
Music Theory - A guide to music theory that including chords, scales, music notation and other music theory topics. Has weblog format; includes links as well..
Music Theory - Covers intermediate and slightly advanced topics in tonal music theory..
Music Theory Help Site - Intermediate music theory help covering basics through beginning formal analysis and counterpoint..
Music Theory Instruction - Online instruction for all musicians beginner or advanced. Covers scales, chordal theory, progression theory, modes and foreign scales..
Music Theory Society of New York State - Provides a forum for the exchange of information and to promote music theory as a scholarly and pedagogical discipline. Site also contains membership and scholarship information as well as open calls for papers..
Music Worksheets - Downloadable worksheets for elementary and middle school students..
Musica Theoria - Offers explanation of chords, scales, harmony, tuning systems, counterpoint. Also provides links to ear training sites, news groups and history..
The Musical Octave - Thomas Váczy Hightower's study of musical scales. Discuses the meta-physical properties of music and the creation of musical scales from an acoustic and mathematical perspective..
Nuottila - Online ear training fundamentals site. [Requires Java].
Pattern Thinking in Music - Offers visual aid to recognizing musical patterns occurring in melody, harmony and rhythm. Provides online demonstration; requires download..
Polytempo Music Articles - Articles by John Greschak. Includes an annotated bibliography of polytempo music..
Rhythm Exercises - Notation for drills, rudiments and etudes for practicing rhythm..
Ricci Adams' Musictheory.net - Includes introductory and intermediate music theory lessons, ear trainers, and books..
SchenkerGuide - An introduction to Schenkerian analysis for undergraduate music students. Includes background, working method, glossary and bibliography..
Schoen Musical Notation - Julius Schoens alternative to traditional musical notation, has music notation documents, reference, and discussion..
Skytopia: Music and Art Aesthetics - Author's overview of how every piece of music, every sound, and every picture can be rated on its own merits outside (as well as inside) human opinion..
Solomon's Music Resources - Resources for composers, music theorists, and researchers of music, with sound files, papers and compositions..
Star Theory - Free preparatory syllabus in music theory and orchestration..
Technical Committee on Musical Acoustics - A group within the Acoustical Society of America, that concerns itself with the application of science and technology to the field of music. Contains members, a list of papers, acousticians and links..
Teoria - Includes software, books, exercises, and links..
Theory on the Web - Intermediate music theory review for college students..
The Tonal Centre - Interactive site for music composers and theorists which explains and demonstrates some of the key concepts of tonality; including chords, scales, cadences, and modulation..
Tonality Guide - Fundamentals of tonality and music theory created as an online teaching tool with written and aural examples..
8-Tone Quarto-Modes Concept - Information with mp3 files, an introduction to the "diminished-major" and its applications..
VCU Music Theory Resources - Music theory and ear training resources from Virginia Commonwealth University..
What is Music - Solving a Scientific Mystery - Provide information on the book by Philip Dorrell which explains a new scientific theory about music: the super-stimulus theory..