For our last day of pop aural skills class, I did a crash course on historical tuning systems. This involved a brief introduction to harmonics. As I was talking, I realized that my verbal explanation of this concept is still clunky and imprecise. This is a problem, because harmonics are important, not just for music …
Category Archives: Science
Frequency and EQ
EQ (equalization) plugins are volume controls for specific parts of the frequency spectrum. Every DAW, mixing board and guitar amp has EQ controls, and they can radically transform your sounds. But while EQ is an essential part of audio engineering, it is also a source of confusion for beginners. In this post, I lay out …
What is the difference between analog and digital recording?
All microphones are analog. They convert pressure waves in the air into electricity. Pressure waves in the air vibrate a little piece of metal, and that generates a fluctuating electrical current. Different kinds of mics have different specific ways of doing this. In dynamic mics, the air vibrates a magnet. This magnet is wrapped in …
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Blues harmony primer
For a more detailed and scholarly version of this guide with a bibliography, see my Blues Tonality treatise. See also this post on blues melodies. How do chords and scales work in the blues? Is there a “blues scale”, and if so, what notes does it include? What are blue notes? Why does it sound …
Tuning is hard
I am committed to teaching my students something about the history of tuning in Western European music. I don’t expect them to retain any details or do any math, I just want them to know that the history exists. In preparation, I continue to refine my explanation of this history to myself. Before the year …
Groove: an aesthetic of measured time
As I work toward my future book on the theory of groove-based music, I’m reading up on the existing literature. There is not a whole lot of it! Most of the scholarly work about groove is about the social side rather than the music side. That’s why I was excited to find Mark Abel’s book, …
What the heck is a decibel
If you are a musician or audio engineer, it is very important to know what decibels are. Unfortunately, decibels are extremely confusing. For one thing, there are so many different kinds of decibels! You only care about two of them: the decibels you see on a noise meter, and the decibels you see on a …
Aural Skills for Audio Engineers
Montclair State University asked me to develop and possibly teach a class on aural skills for audio engineers. It’s a great idea! It isn’t just audio engineers who need to know what frequencies and decibels are. These are concepts that any musician would benefit from knowing. Here’s my first pass at a course outline. The …
The harmonic family tree
My blog stats have made it crystal clear that very few of you want to read about tuning systems. However, a vocal minority of you do love reading about them, and I definitely enjoy writing about them. So, let’s dig in and see how much Western harmony we can derive from the natural overtone series!
Seventh chords in just intonation vs 12-TET
I enjoy listening to Jacob Collier explain his music more than I enjoy the music itself. His arrangement of “Moon River” is mostly exhausting. However, Miles Comiskey pointed me to an interesting moment in this explainer video at the 1:04:22 mark where Jacob talks about how Kontakt enables you to change your instrument tuning on …
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