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<!DOCTYPE html><html><head><meta name="viewport" content="width=device-width"/><meta charSet="utf-8"/><title>Learn music theory in half an hour</title><script src="https://polyfill.io/v3/polyfill.min.js?features=es6"></script><script id="MathJax-script" async="" src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js"></script><script type="text/x-mathjax-config">
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</script><meta name="next-head-count" content="6"/><link rel="preload" href="/wiki/_next/static/css/52fc2ba29703df73922c.css" as="style"/><link rel="stylesheet" href="/wiki/_next/static/css/52fc2ba29703df73922c.css" data-n-g=""/><noscript data-n-css=""></noscript><link rel="preload" href="/wiki/_next/static/chunks/main-ae4733327bd95c4ac325.js" as="script"/><link rel="preload" href="/wiki/_next/static/chunks/webpack-50bee04d1dc61f8adf5b.js" as="script"/><link rel="preload" href="/wiki/_next/static/chunks/framework.9d524150d48315f49e80.js" as="script"/><link rel="preload" href="/wiki/_next/static/chunks/commons.0e1c3f9aa780c2dfe9f0.js" as="script"/><link rel="preload" href="/wiki/_next/static/chunks/pages/_app-8e3d0c58a60ec788aa69.js" as="script"/><link rel="preload" href="/wiki/_next/static/chunks/940643274e605e7596ecea1f2ff8d83317a3fb76.4841a16762f602a59f00.js" as="script"/><link rel="preload" href="/wiki/_next/static/chunks/pages/%5B%5B...slug%5D%5D-1aa198f87ede1cd0e1dc.js" as="script"/></head><body><div id="__next"><main><h1>Learn music theory in half an hour</h1><section class="post-metadata"><span>Date: <!-- -->2021-07-21 14:29:42 +08:00</span><span>Date modified: <!-- -->2021-11-07 18:34:30 +08:00</span></section><nav class="toc"><ol class="toc-level toc-level-1"><li class="toc-item toc-item-h1"><a href="/wiki/literature.learn-music-in-half-an-hour#exercises" class="toc-link toc-link-h1">Exercises</a></li></ol></nav><ul><li><p>sounds are vibrations of air just repeated quickly in a short period of time
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</p></li><li><p>for the sake of easily referring to the sounds, we name them;
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<strong>the commonly agreed number of notes are 12 composing of an octave</strong>;
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</p></li><li><p>scales are the flavor of the song;
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certain genres are often written in some scales (e.g., blues are often written in Emaj)
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</p></li><li><p>major scales; WWhWWWh
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</p></li><li><p>minor scales; WWWhWWh
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</p></li><li><p></p></li></ul><h1 id="exercises">Exercises</h1><ul><li><p>practice applying the major scale for 5
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</p><ul><li><p>D E Fb G A B C# D
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</p></li><li><p>E# G A A# C D E E# </p></li><li><p>A# C D D# F G A A#
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</p></li><li><p>G A B C D E F# G
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</p></li><li><p>C D E F G A B C
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</p></li><li><p>A B C# D E F# G# A
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</p></li></ul></li><li><p>practice getting familiar with their letter names
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</p><ul><li><p>assuming A# is the root of the major scale
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</p><ul><li><p>A# is the first
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</p></li><li><p>C is the second of A#maj
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</p></li><li><p>D# is the fourth of A#maj
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</p></li><li><p>D is the third
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</p></li><li><p>G is the sixth of A#maj
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</p></li></ul></li></ul></li><li><p>practice making triads from first through sixth degrees of a major scale
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</p><ul><li><p>G major scale:
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</p><ul><li><p>G B D = Gmaj
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</p></li><li><p>A C E = Amin
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</p></li><li><p>B D F# = Bmin
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</p></li><li><p>C E G = Cmaj
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</p></li><li><p>D F# A = Dmaj
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</p></li><li><p>E G B = Emin
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</p></li><li><p>F# A C = F#dim
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</p></li></ul></li><li><p>A major scale:
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</p><ul><li><p>A C# E = Amaj
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</p></li><li><p>B D F# = Bmin
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</p></li><li><p>C# E G# = C#min
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</p></li><li><p>D F# A = Dmaj
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</p></li><li><p>E G# B = Emaj
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</p></li><li><p>F# A C# = F#min
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</p></li><li><p>G# B D = G#dim
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</p></li></ul></li><li><p>C major scale:
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</p><ul><li><p>C E G = Cmaj
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</p></li><li><p>D F A = Dmin
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</p></li><li><p>E G B = Emin
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</p></li><li><p>F A C = Fmaj
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</p></li><li><p>G B D = Gmaj
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</p></li><li><p>A C E = Amin
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</p></li><li><p>B D F = Bdim
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</p></li></ul></li></ul></li><li><p>each of them has a certain pattern: maj, min, min, maj, maj, min, dim
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</p></li><li><p>practice making chord progressions with numbers
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</p><ul><li><p>1 4 2 5 in G and A key
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</p></li><li><p>4 2 1 1 6 in E
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</p></li><li><p>3 1 4 in C
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</p></li></ul></li></ul><pre class="src-block"><code class="language-lilypond">
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</code></pre></main></div><script id="__NEXT_DATA__" type="application/json">{"props":{"pageProps":{"metadata":{"date":"2021-07-21 14:29:42 +08:00","date_modified":"2021-11-07 18:34:30 +08:00","language":"en","source":""},"title":"Learn music theory in half an hour","hast":{"type":"root","children":[{"type":"element","tagName":"nav","properties":{"className":"toc"},"children":[{"type":"element","tagName":"ol","properties":{"className":"toc-level toc-level-1"},"children":[{"type":"element","tagName":"li","data":{"hookArgs":[{"type":"element","tagName":"h1","properties":{"id":"exercises"},"children":[{"type":"text","value":"Exercises"}]}]},"properties":{"className":"toc-item toc-item-h1"},"children":[{"type":"element","tagName":"a","properties":{"className":"toc-link toc-link-h1","href":"/literature.learn-music-in-half-an-hour#exercises"},"children":[{"type":"text","value":"Exercises"}]}]}]}]},{"type":"element","tagName":"ul","properties":{},"children":[{"type":"element","tagName":"li","properties":{},"children":[{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"sounds are vibrations of air just repeated quickly in a short period of time\n"}]}]},{"type":"element","tagName":"li","properties":{},"children":[{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"for the sake of easily referring to the sounds, we name them;\n "},{"type":"element","tagName":"strong","properties":{},"children":[{"type":"text","value":"the commonly agreed number of notes are 12 composing of an octave"}]},{"type":"text","value":";\n"}]}]},{"type":"element","tagName":"li","properties":{},"children":[{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"scales are the flavor of the song;\n certain genres are often written in some scales (e.g., blues are often written in Emaj)\n"}]}]},{"type":"element","tagName":"li","properties":{},"children":[{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"major scales; WWhWWWh\n"}]}]},{"type":"element","tagName":"li","properties":{},"children":[{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"minor scales; WWWhWWh\n"}]}]},{"type":"element","tagName":"li","properties":{},"children":[{"type":"element","tagName":"p","properties":{},"children":[]}]}]},{"type":"element","tagName":"h1","properties":{"id":"exercises"},"children":[{"type":"text","value":"Exercises"}]},{"type":"element","tagName":"ul","properties":{},"children":[{"type":"element","tagName":"li","properties":{},"children":[{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"practice applying the major scale for 5\n"}]},{"type":"element","tagName":"ul","properties":{},"children":[{"type":"element","tagName":"li","properties":{},"children":[{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"D E Fb G A B C# D\n"}]}]},{"type":"element","tagName":"li","properties":{},"children":[{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"E# G A A# C D E E# "}]}]},{"type":"element","tagName":"li","properties":{},"children":[{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"A# C D D# F G A A#\n"}]}]},{"type":"element","tagName":"li","properties":{},"children":[{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"G A B C D E F# G\n"}]}]},{"type":"element","tagName":"li","properties":{},"children":[{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"C D E F G A B C\n"}]}]},{"type":"element","tagName":"li","properties":{},"children":[{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"A B C# D E F# G# A\n"}]}]}]}]},{"type":"element","tagName":"li","properties":{},"children":[{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"practice getting familiar with their letter names\n"}]},{"type":"element","tagName":"ul","properties":{},"children":[{"type":"element"
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