Observed arrival · 2026-09-07
Grammar of Music
An interactive music-theory reference where chords, intervals, and progressions are presented with sound, notation, and analysis.
Field notes
The site combines an encyclopaedia, glossary, timeline, analyses, and a collection of practical theory tools. Its stated interaction model is unusually concrete: visitors can click musical symbols and hear them, while the tools include a chord dictionary, transposer, harmonic field, circle of fifths, and progression analyser. The article index also reaches beyond standard beginner theory into bossa nova harmony, Brazilian rhythmic forms, choro, altered dominants, and functional ear training.
Observed signals
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Editorial observations of this landing page, not a rating.
One card from the complete issue