Harmony for Composers
Hey students! šµ Welcome to one of the most exciting aspects of music composition - harmony! In this lesson, we'll explore how to create compelling harmonic progressions, master voice leading techniques, and make smart textural choices that support your melodies beautifully. By the end of this lesson, you'll understand how harmony works as the foundation that makes melodies shine, and you'll have practical tools to create your own stylistic harmonic language. Think of harmony as the colorful paint that brings your musical canvas to life! šØ
Understanding Harmonic Progressions
Harmonic progressions are sequences of chords that create the backbone of your composition. Just like sentences need proper grammar to make sense, music needs logical chord progressions to sound coherent and emotionally satisfying to listeners.
The most fundamental concept in Western harmony is functional harmony, where each chord has a specific role or "function" in the key. We use Roman numerals to identify these functions: I (tonic - home), V (dominant - tension), and iv or IV (subdominant - departure from home). These three functions create what we call the "harmonic cycle" - a journey away from home and back again.
Let's look at some incredibly popular progressions that you've definitely heard before! The I-V-vi-IV progression (in C major: C-G-Am-F) appears in thousands of songs from "Let It Be" by The Beatles to "Don't Stop Believin'" by Journey. This progression works because it takes us from home (I), creates tension (V), provides a gentle surprise with the relative minor (vi), then sets us up perfectly to return home via the subdominant (IV).
Another essential progression is the ii-V-I, especially common in jazz but used everywhere. In C major, this would be Dm-G-C. This progression is so satisfying because the ii chord contains the 4th degree of the scale, which naturally wants to resolve down to the 3rd (found in the V chord), and then the leading tone in the V chord pulls us irresistibly back to the tonic.
For more sophisticated harmony, try the vi-IV-I-V progression, which starts in a more melancholic place with the relative minor before building energy toward the dominant. This creates a different emotional arc than starting on the tonic - it's like beginning your story in the middle of the action! š
Mastering Voice Leading Techniques
Voice leading is the art of connecting chords smoothly by carefully controlling how each individual voice (or part) moves from one chord to the next. Think of it like choreographing a dance where four dancers (soprano, alto, tenor, bass) need to move gracefully without bumping into each other! š
The golden rule of voice leading is "common tones and stepwise motion." This means you should keep notes that are common between two chords in the same voice, and move other voices by the smallest possible intervals - preferably steps or half-steps. For example, when moving from C major (C-E-G) to F major (F-A-C), notice that C appears in both chords. Keep that C in the same voice, then move E up a step to F, and G up a step to A. This creates smooth, connected harmony instead of jarring jumps.
Parallel motion occurs when voices move in the same direction by the same interval. While parallel thirds and sixths sound beautiful and are used constantly in popular music, parallel fifths and octaves are generally avoided in classical voice leading because they make the voices sound like they're merging into one. It's like having two people speak in perfect unison - you lose the independence of each voice.
Contrary motion is when voices move in opposite directions, and it's one of the most elegant voice leading techniques. When the bass moves up, try having the soprano move down. This creates a sense of balance and prevents voices from getting too close together or too far apart.
Oblique motion happens when one voice stays on the same note while others move. This is perfect for maintaining common tones while other voices resolve their tendencies. The stationary voice acts like an anchor, providing stability while the harmony shifts around it.
Remember that the bass line is your harmonic foundation - it should be strong, purposeful, and singable. A good bass line often moves by fourths and fifths (the strongest harmonic intervals) or by steps. Avoid large leaps unless they serve a specific musical purpose, as they can make the harmony sound disconnected.
Textural Choices and Melodic Support
Texture in music refers to how many layers you have and how they interact with each other. Your choice of texture dramatically affects how listeners perceive your harmony and melody. Let's explore the main textural options available to you as a composer! šļø
Homophonic texture features one main melody supported by harmonic accompaniment. This is probably what you're most familiar with - think of a singer with piano accompaniment or a violin solo with orchestral backing. In this texture, your harmony should support and enhance the melody without competing with it. Use chord tones that complement the melodic notes, and consider the rhythm of your accompaniment carefully. A gentle arpeggiated accompaniment creates a flowing, lyrical feeling, while blocked chords provide more rhythmic drive.
Polyphonic texture involves multiple independent melodic lines happening simultaneously. This is more complex but incredibly rewarding! Each voice should have its own melodic integrity while contributing to the overall harmonic structure. Bach's fugues are the ultimate example - every voice is a beautiful melody on its own, but together they create rich, complex harmony. When writing polyphonically, make sure each voice has interesting melodic content and avoid having voices cross unless there's a good musical reason.
Monophonic texture is a single unaccompanied melodic line. While this might seem like it doesn't involve harmony, you can still imply harmonic progressions through your melodic choices. Outline chord tones at strong beats, use passing tones and neighbor tones to create movement, and consider how your melody suggests the underlying harmony even without other voices present.
Heterophonic texture involves multiple voices playing variations of the same melody simultaneously. This creates a rich, layered effect while maintaining melodic focus. It's common in folk music traditions and can add beautiful complexity to simple melodies.
When supporting a melody harmonically, consider the harmonic rhythm - how often the chords change. Fast harmonic rhythm (chords changing frequently) creates energy and forward motion, while slow harmonic rhythm allows listeners to savor each harmony. Match your harmonic rhythm to your melodic content and the emotional character you want to create.
Creating Stylistic Harmony
Different musical styles have their own harmonic languages, and understanding these conventions will help you write more authentic and effective music in any genre you choose! š¼
Classical harmony emphasizes functional relationships between chords, clear voice leading, and carefully prepared and resolved dissonances. Seventh chords are used sparingly and usually resolve downward by step. Modulation (changing keys) happens through common chords or pivot chords that belong to both the old and new keys.
Jazz harmony embraces extended chords (9ths, 11ths, 13ths), complex chord substitutions, and frequent use of secondary dominants. The ii-V-I progression is fundamental, but jazz musicians constantly reharmonize these basic progressions with tritone substitutions, chromatic mediants, and other sophisticated techniques.
Popular music harmony often uses simpler progressions but with creative voicings, inversions, and rhythmic treatments. Power chords (root and fifth only) are common in rock music, while pop music frequently uses add9 chords and suspended chords to create a modern, open sound.
Modal harmony uses the ancient church modes (Dorian, Phrygian, Lydian, etc.) instead of major and minor scales. Each mode has its own characteristic sound and harmonic tendencies. For example, Dorian mode (natural minor with a raised 6th) creates a bittersweet quality that's perfect for folk and Celtic music.
Conclusion
Harmony is the magical element that transforms simple melodies into rich, emotionally powerful music. By mastering harmonic progressions, you create the structural foundation that guides listeners through your musical story. Voice leading techniques ensure that your harmonies flow smoothly and naturally, while thoughtful textural choices help you create the perfect setting for your melodies to shine. Remember that harmony serves the music - it should enhance and support your creative vision, not overshadow it. With practice and experimentation, you'll develop your own harmonic voice that makes your compositions uniquely yours! š
Study Notes
ā¢ Functional Harmony: I (tonic/home), V (dominant/tension), IV (subdominant/departure)
ā¢ Common Progressions: I-V-vi-IV, ii-V-I, vi-IV-I-V
ā¢ Voice Leading Rule: Common tones and stepwise motion
ā¢ Parallel Motion: Avoid parallel 5ths and 8ves; parallel 3rds and 6ths are beautiful
ā¢ Contrary Motion: Voices moving in opposite directions create balance
ā¢ Oblique Motion: One voice stays while others move
ā¢ Bass Line: Should be strong and singable, often moving by 4ths, 5ths, or steps
ā¢ Homophonic Texture: One melody with harmonic accompaniment
ā¢ Polyphonic Texture: Multiple independent melodic lines
ā¢ Harmonic Rhythm: How frequently chords change affects energy and flow
ā¢ Classical Style: Functional harmony, careful voice leading, prepared dissonances
ā¢ Jazz Style: Extended chords, complex substitutions, frequent ii-V-I
ā¢ Popular Style: Simple progressions with creative voicings and rhythms
ā¢ Modal Harmony: Uses church modes instead of major/minor scales