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Tag Archives: Music Theory

What is the appeal of atonality and serialism in music?

The mind constantly works to find tonal centers in any music. The best atonal music is really just very complex tonal music, challenging our ability to get our harmonic bearings without totally overwhelming us. Music that strikes the right balance between predictable, functional harmony and randomness is the stuff that people find exciting; the unexpected [...]

Why do musical notes sound different on different instruments?

A musical pitch is a blend of many different frequencies beside the fundamental. Here’s a visualization of the different vibrational modes of an ideal string. The string’s movements are the sum of all these different modes simultaneously.

Music theory and quantum mechanics

In high school science class, you probably saw a picture of an atom that looked like this: The picture shows a stylized nucleus with red protons and blue neutrons, surrounded by three grey electrons. It’s an attractive and iconic image. It makes a nice logo. Unfortunately, it’s also totally wrong. There’s an extent to which [...]

Secondary dominants

When I was a kid, I’d listen to music and wonder, why is this chord progression so much more satisfying than that one? Now I know the answer: secondary dominants, chords that temporarily change the key in a logical-sounding way. If you want to take your songwriting in a more sophisticated direction, you definitely want [...]

How do you know what key you’re in?

It’s hard to figure out what key a piece of music is in. There are a lot of conflicting answers from different music theory texts. To make matters worse, it’s not at all unusual for a song to change keys, even within a section or phrase. Even rock songs written by totally naive songwriters can [...]

Harmonica guide

I have a new harmonica student starting today, so while I gather materials for him, I figured I’d put them in a blog post too. I started learning harmonica in high school. It was the first instrument I learned voluntarily, not counting my ineffectual middle school attempt at classical cello. As a teenager, my obsession [...]

The major scale and the circle of fifths

I studied music theory for a good long time before it dawned on me that you can read the major scale right off the circle of fifths. Here’s the C major scale on the circle. The red notes are the ones in the scale and the grey ones are the ones outside the scale. The [...]

Tuning system geekery

If you’re a guitarist, you may have noticed that it’s hard to get your instrument perfectly in tune. This is not your imagination. If you tune each string perfectly to the one next to it, the low E string will end up out of tune with the high E string. If you use an electronic [...]

So What

I’ve read that Quincy Jones carries around copies of Miles Davis’ Kind Of Blue in his briefcase, and that he hands them out to kids whenever he meets them. Q-Tip compares Kind Of Blue to the Bible — you’re just expected to have a copy around the house. If you’ve never heard jazz before, Kind [...]

Diminished chords and the blues

The blues is a good entry path for beginner guitarists. If you learn the standard fifteen chords and the blues scale, you’ll be well on your way. However, there’s one crucial piece of additional music vocabulary you need to do the blues justice, and that’s diminished chords. To make a diminished chord, you start on [...]