Maceo Parker’s blue notes in a James Brown classic

I got interested in tuning theory because of the blues. The first instrument I learned to play well was the harmonica, and an essential part of blues harmonica is bending notes to make them go flat. The same is true for blues guitar, though there you are bending notes sharp rather than flat. For several …

F-sharp vs G-flat in just intonation

As I gear up for teaching music theory in the fall, I’m still refining my explanation of Western music’s arcane naming system for enharmonics. Why is the note between F and G sometimes called F-sharp and sometimes called G-flat? Why do we sometimes call the interval between that note and C an augmented fourth, and …

Hobo Blues

Now that the novelty of merely getting to talk about the blues in class has worn off, I am dealing with the practical question of how best to teach it. Rather than working from a set of abstract principles, I decided to walk my students through a selection of specific tunes to see what we …

Devil Got My Woman

The movie Ghost World tells us that people who are obsessed with old blues records are creeps, but also that old blues records are worth being obsessed with. There’s a pivotal scene where Enid, the young protagonist, hears “Devil Got My Woman” by Skip James, and reacts to it in much the same way that …

The minor key universe

In a previous post, I suggested that we think of an expanded major key universe that includes the major scale, Mixolydian mode, Lydian mode, and maybe also Mixolydian b6. In this post, I present a similar approach to minor keys, by extending the logic of Western European tonal theory to cover some additional minor scale …

The major key universe

Minor keys are complicated, because there are so many different minor scales. Major keys seem simpler, because there is only the one major scale. At least, that is how things worked in Western Europe between 1700 and 1900. In present-day Anglo-American pop, though, we need to expand our idea of what a major key is.

Identifying blues melodies

This is an exciting week of class for me, because we are analyzing blues melodies, and that is a music-theoretic subject that is close to my heart. Given its impact on the past hundred years of Anglo-American popular culture, the blues has been the subject of a shockingly small amount of musicological analysis. The best …

Identifying song forms

Song structure is a strange music theory topic, because there is not much “theory” beyond just describing it. Why are some patterns of song sections so broadly appealing? The answer has something to do with the balancing of surprise and familiarity, of predictability and unpredictability, but if someone has a systematic theory of why some …

Identifying phrase structure

It’s easy to understand what a section of a song is: an intro, a verse, a chorus, a bridge. It is less easy to understand phrases, the components of a song section. Usually a song section contains between two and four phrases. But what is a phrase? No one seems totally sure. This is important …

Identifying plagal cadences

This week in aural skills, we’re working on various harmonic tropes based on IV-I root movements. This chord progression is technically called the plagal cadence, but is more memorably nicknamed the “Amen” cadence because it’s a traditional European hymn ending. (It has nothing to do with the Amen break, though they do sound good together.) …