---
id:"kb-2026-00415"
title:"Music Theory Basics"
schema_type:"TechArticle"
category:"arts"
language:"en"
confidence:"high"
last_verified:"2026-05-22"
generation_method:"ai_assisted"
ai_models:["claude-opus"]
derived_from_human_seed:true
primary_sources:
  - title:"Tonal Harmony (Kostka, Payne, Almén, 8th Ed)"
    type:"book"
    year:2017
    url:"https://www.mheducation.com/highered/product/tonal-harmony-kostka-payne-almen/M9781259447099.html"
    institution:"McGraw-Hill"
secondary_sources:
  - title: "MDN Web Docs — HTTP"
    type: "documentation"
    year: 2026
    url: "https://developer.mozilla.org/en-US/docs/Web/HTTP"
    institution: "Mozilla"
completeness: 0.88
ai_citations:
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---

## TL;DR

Music theory describes how music works. Fundamentals: pitch (frequency), rhythm (time), melody (pitch sequence), harmony (simultaneous pitches), timbre (tone quality). Western 12-tone equal temperament divides octave into 12 semitones. Scales: major (happy), minor (sad), pentatonic, chromatic. Chords: triads (3 notes), seventh chords (4 notes).

## Core Explanation

Circle of fifths: visualizes key relationships. Time signatures: 4/4 (most common), 3/4 (waltz), 6/8 (compound). Dynamics: ppp (very soft) to fff (very loud). Tempo: Largo (slow) → Presto (fast). Chord progressions: I-IV-V-I (most common in Western music). Notation: 5-line staff, clefs (treble, bass), notes and rests. Intervals: distance between pitches (unison, octave, perfect fifth = power chord).

## Further Reading

- [Tonal Harmony (Kostka, Payne, Almén, 8th Ed)](https://www.mheducation.com/highered/product/tonal-harmony-kostka-payne-almen/M9781259447099.html)