61: An Introduction to Form

Let’s take a minute to introduce a very important concept in analysis: form. Form describes how the music is put together. Scale matters here. At a small scale, you might look at form phrase by phrase or section by section. You might see some beginning phrase, which we’ll label “A” since it’s the first one. Then you might see something contrasting, which, since it’s completely different from A, we’ll label B. Finally, you might have a third phrase which is very similar to A, but not quite the same—and we’ll call it A’ (read “A prime”).


This kind of pattern recognition is where every discussion of form should start. I was first introduced to form in my public school music classes when I was probably in first or second grade, not long after I started playing the violin (but before I could read music, and certainly before I developed an interest in theory). I remember distinctly matching phrases to different polygons of various colors. There was the “red circle” phrase, then the “blue square”, then the “purple pentagon,” and then the “red circle” again, and so forth. Especially at a young age, this approach to form is great. As you get older, you can age out of this approach and go directly to labeling by letter, A, B, C, A’, and so on.

But there’s also another lens through which to do formal analysis—to get the 30,000-foot view. You might, for example, see that there are one or two themes presented quite simply in the home key you expect. Then, the composer might take one or both of those themes and run with them, teasing new ideas out of them that were born from the first things you heard. You may modulate to faraway places, or perhaps to a parallel or relative key. You’ll probably end up in the dominant, and you could hear the first two themes again, but this time maybe in reverse order, by which point you’re back home in the tonic. There may or may not be a section after you return home dedicated entirely to tying up loose ends. If this is what you hear—thinking now at a much bigger scale, a minute or two or perhaps more at a time, rather than just a few seconds—then you just heard something we label “sonata form.” Or you might have heard an idea played against itself in several voices, with filler material, contrasting themes, and more of that counterpoint—and if so, you heard a fugue.  

Every good musician should know how to find and interpret form at both scales—I think, not just to recognize the form at either level of precision, but to understand what that means in the context in which the piece is being performed, and so how best to communicate what the composer and/or performer wants to tell the listener.

Form is a vast topic, so this was merely an introduction to the very basics. We’ll have many, many more articles covering form coming up.

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