Finding Dissonance in Tonality

This is a lesson in what I call “finding dissonance in tonality.” The goal here is to focus on creating arpeggiated chord shapes and riffs that use tense intervals like 2nds, tritones, and 7ths, while still remaining in a particular key signature. This creates a haunting and moody sound that I often like to think of as “pretty dissonance.” In these examples we will find progressions that are dissonant yet still diatonic. It is a sound I use quite often in my own music and one that my ears are naturally drawn to. Ex. 1Ex. 1 demonstrates this concept by picking a key—in this case A minor. Then, I decide on a modal sound in that key (D Dorian). Next, we construct chord shapes in that key to include things like stacks of 2nds, or tritones mixed with 2nds. We have to look at our key signature and find which notes give us 2nds, tritones and 7ths. In this case, the notes we want to utilize are B and C, and E and F for our minor 2nds (or major 7ths depending on which note is in the bass). We’ll use A and B, D and E, and G and A for our major 2nds, and F and B for our tritones.
You might find that this example has a pleasing sound, despite the dissonance, since Dorian has a dreamy and nostalgic feeling to it. Yet the particular mix of intervals gives it a certain tension. The stretches here can be challenging, and there is a bit of movement around the neck. This example sounds best when played with a clean sound with all the notes ringing out together. We also have some time signature changes to keep us paying attention as well. Ex. 2For Ex. 2, we’re in the key of G major and are focusing on using a combination of 2nds, tritones, and 7ths to create some lush modal chords. The tension in these chords in particular is created by the G root note of chord one ringing against the F# on the D string, creating a major 7th. Then, we have that same F# hitting a C to create a tritone. Finally, the C to open B string at the top is creating a minor 2nd. Chord two has the major 7th again with the low C to B, then we have a major 2nd with the E to F#, and at the top of the chord, that same F# against the open E, creating another major 2nd. The final chord uses tritones again with the F# to C and then up to F# again. The top of the chord has an A to open B creating a major 2nd. This is a good example of how to create uplifting, major-key progressions that have a little spice to them.Ex. 3Ex. 3 takes the same chords of Ex. 2 but “octave displaces” certain notes to create wider spread voicings. The note relationships are still the same, it’s just that some notes have now been placed an octave higher throughout the progression. This makes it a bit more challenging to play, so I’ve taken the bpm down a bit. In general, I recommend practicing these very slowly at first and aiming for clarity and articulation. Utilizing the approach of octave displacing can create some very interesting melodic sequences. It is a fantastic way of creating a variation out of something you’ve already written. So far these examples have been fairly light and bright sounding despite the dissonance in the chords. Ex. 4 gets a little darker and more tense. It’s also in 5/4 time. Based in the key of D minor, this riff heavily focuses on using minor 2nds. First, I look at the key signature, which has one flat: Bb. Next, I find which notes in the D minor scale give me minor 2nds. These notes are A to Bb and E to F. Bb to E also gives me a tritone. Once again, there is a bit of movement all around the neck in a short amount of time.Ex. 5Ex. 5 is again in D minor but more of a lower-register riff. In this example, I also use a somewhat tense interval we haven’t talked about yet, the minor 6th. In the first three notes of the example, we have a D to an A. Nothing tense there, just a perfect 5th. Next, though, is an A to a Bb—a minor 2nd. In addition, the relationship between notes one and three is a minor 6th. This interval appears again as the last dyad in the first bar. Those first three notes (D, A, and Bb) give us a sus b6 chord shape. I first came across this chord in the song “Guardian” by Fates Warning. Their guitarist Jim Matheos uses a lot of these haunting interval combinations, which became an influence on me early on in my playing.Ex. 6I encourage you to find some chords and progressions of your own that take inspiration from this approach. I’ll leave you with Ex. 6, a simple way to start. Take some basic major and minor chord shapes and add extensions to them like 2nds, 4ths, 6ths, etc. Chord one is an Am(add9), which is the 2nd moved up an octave. Chord two is a Cmaj(add#4). Chord three is a Bm(add11/b9). Chord four can be thought of as an inversion of Cmaj(add#4). The E in the bass makes it sound very dark. Those new scale tones create extra tension and dissonance and automatically make what you’re playing sound more evocative. Try these ideas out and see what paths they take you down!