For many people, the initial foray into music theory involves learning the names of the notes, or a pattern of whole and half steps, but the part that really starts to feel like magic happens when you start to feel like some chords sound “at rest,” and others sound like they want to go somewhere else. When you feel like you’re “home,” that’s not just your imagination. That’s tonal gravity. When you’re in a basic key, like the key of C major, the reason the C major chord sounds and feels at rest is because every note that is contained within the chord is part of the key, and thus reaffirms its central note. If you have access to a keyboard, or any instrument that can play chords, play the following: C – F – G – C. Hold onto each chord long enough to feel the difference. When you get to the end and resolve on that final C major chord, it should feel something like finally being able to exhale after holding your breath for awhile. This feeling of relief is basically the entire basis for harmony.
If you have a keyboard or can spend about fifteen minutes repeating that progression, a quick exercise you can do is to slowly go through the above progression and sing the top note of each chord. If your voice shakes, that’s okay, just try to follow the pitch, because your ear will start to hear the motion between the notes rather than the notes themselves. Do this a few times, and before you hit that final C chord, see if you can predict how it will feel when you hit it. Then hit it and see how right you were. A few rounds of anticipation followed by verification will help your intuition more than sitting and thinking about it. If you don’t have a keyboard, you can play a looped version of the chords on your phone, as long as you’re thinking about the amount of tension in each chord.
There is a tendency to learn chord shapes by rote, instead of teaching yourself to recognize chord progressions. If you’re only looking at your hands or a chord chart, your ears aren’t engaged, and the chord progression will sound weird later on. It’s useful to practice with your eyes closed. It’s also useful to hum the tonic of the key while playing the chord progression. The constant tone helps to distinguish between chords that move away from the tonic, and chords that move back towards it.
What usually stops newbies in their tracks, however, is the fact that many songs seem to use the same chords, yet evoke a totally different feeling. That’s because they’re missing the other half of the equation: rhythm and duration. So go ahead and play that G for a little while longer than the rest of the chords, and then play it for a little less on the next go-round. See how the “urgency” of the chord progression changes, even though the chord voicing itself remains the same? That knowledge helps you to remember that when you’re analyzing real songs, the timing is just as important as the chords themselves.
With practice, sensitivity to tonal weight makes listening an active act. Music ceases to be a warm bath of sound and takes on form: release, pressure, resolution. Keep going, shifting the progression to another key, and then another. Don’t worry too much about playing it slowly, even awkwardly, at first. You don’t need to play it fast; you need to recognize what resolution feels like in various keys. When you can recognize it anywhere on the keyboard, harmony ceases to be an idea and becomes something you can anticipate as it approaches.