The Arts · Grade 12 · Auditory Landscapes and Sound Theory · Term 3

Advanced Harmony and Dissonance

Students will analyze complex harmonic structures and the intentional use of dissonance in modern music.

• Ontario Curriculum Expectations
• MU:Cr1.1.HSIII
• MU:Re7.1.HSIII

About This Topic

Dissonance and resolution are the 'tension and release' of the musical world. In Grade 12 Music, students analyze how contemporary composers use 'unpleasant' or 'jarring' sounds to evoke specific emotions or social themes. This topic connects to the Foundations and Creating and Performing strands, as students learn to identify intervals and chords that create instability and the techniques used to bring the listener back to a sense of 'home' or resolution.

Students also explore the cultural relativity of dissonance, how what sounds 'wrong' in one tradition might be perfectly 'right' in another. This is particularly relevant in Canada's multicultural landscape, where students can compare Western tonal systems with diverse global musical traditions. This topic is best explored through 'ear-training' games and collaborative composition where students intentionally break rules to see what emotional effects they can create.

Key Questions

1. Analyze how specific dissonant chords create tension and anticipation in a composition.
2. Compare and contrast the use of dissonance in classical versus contemporary music.
3. Explain how a composer can use resolution to provide a sense of closure or unease.

Learning Objectives

• Analyze the function of specific dissonant intervals and chords in creating harmonic tension and anticipation within a musical excerpt.
• Compare and contrast the stylistic use of dissonance in at least two distinct musical periods or genres (e.g., Baroque vs. 20th-century avant-garde).
• Evaluate the effectiveness of a composer's resolution techniques in achieving closure or generating unease in a given composition.
• Synthesize analytical findings to explain how intentional dissonance contributes to the overall emotional impact or narrative of a piece.
• Create a short musical passage that deliberately employs dissonance to evoke a specific emotional response, followed by a clear resolution.

Before You Start

Introduction to Harmony and Chord Progressions

Why: Students need a foundational understanding of basic chords and how they typically move together before analyzing complex dissonant structures.

Interval Recognition and Basic Ear Training

Why: Identifying specific intervals is crucial for recognizing and analyzing the components of dissonant chords.

Key Vocabulary

Dissonance	A combination of musical notes that sound unstable, clashing, or harsh when played together, often creating a sense of tension.
Consonance	A combination of musical notes that sound stable, pleasing, or resolved when played together, providing a sense of rest.
Resolution	The process of moving from a dissonant chord or interval to a consonant one, typically providing a sense of closure or release.
Tension	A feeling of anticipation or instability created in music, often through the use of dissonance, which compels the listener forward.
Tritone	An interval spanning three whole tones (e.g., F to B), historically considered highly dissonant and often used to create unease.

Watch Out for These Misconceptions

Common Misconception

Dissonance is just 'bad' or 'wrong' notes.

What to Teach Instead

Dissonance is a tool for expression. Using 'intentional error' exercises where students must include a 'wrong' note and then 'fix' it helps them understand the functional role of tension in music.

Common Misconception

Resolution always has to be a happy, major chord.

What to Teach Instead

Resolution just means a move from instability to stability. Listening to modern Canadian compositions (like those by R. Murray Schafer) can show students how resolution can be haunting or ambiguous.

Active Learning Ideas

Think-Pair-Share: The Tension Scale

Play five short musical clips. Students individually rate the 'tension' of each on a scale of 1-10. They then compare with a partner and try to identify the specific notes or instruments causing the dissonance.

25 min·Pairs

Inquiry Circle: Cultural Dissonance

Small groups are assigned a musical tradition (e.g., Bulgarian folk, Indian Classical, or Jazz). They find an example of 'dissonance' in that style and explain to the class why it is used and how it eventually resolves.

45 min·Small Groups

Simulation Game: The Resolution Race

The teacher plays a dissonant chord on a piano or software. Students must work in pairs to find the 'best' resolution chord on their own instruments or devices. They then 'perform' their resolutions for the class to vote on the most satisfying one.

30 min·Pairs

Real-World Connections

• Film composers use dissonance to underscore moments of suspense, horror, or psychological distress in movie soundtracks, manipulating audience emotions through carefully chosen harmonies.
• Sound designers in video games employ dissonant textures and sudden resolutions to signal danger, alert players to threats, or create atmospheric tension in virtual environments.
• Avant-garde jazz musicians frequently explore extreme dissonance and unconventional resolutions, pushing the boundaries of traditional harmony to express complex emotions or social commentary.

Assessment Ideas

Exit Ticket

Provide students with a short musical excerpt (audio or score). Ask them to identify one instance of dissonance, describe the specific interval or chord used, and explain the emotional effect it creates. Then, ask them to describe the subsequent resolution, if present.

Discussion Prompt

Pose the question: 'How does the cultural background of a listener influence their perception of dissonance and consonance?' Facilitate a discussion where students share examples from different musical traditions, including Canadian multicultural influences, and debate the universality versus relativity of harmonic 'rules'.

Quick Check

Play two brief musical phrases: one ending with a dissonant chord and one with a consonant chord. Ask students to hold up a green card for consonance/resolution and a red card for dissonance/tension. Follow up by asking a few students to explain their choices.

Frequently Asked Questions

How do I teach music theory without it being boring?

Make it a game. Use active learning strategies like 'chord bingo' or 'tension mapping' where students physically move to different parts of the room based on the level of dissonance they hear in a piece.

What are some examples of dissonance in popular music?

Look at the 'tritone' in heavy metal or the 'blue notes' in jazz. Even pop artists like Billie Eilish use dissonance to create a sense of unease. These relatable examples help Grade 12 students see the theory in action.

Why does dissonance make us feel uncomfortable?

It's a mix of physics (clashing frequencies) and cultural conditioning. Use a 'blind listening' activity to see if students can guess the 'mood' of a dissonant piece without knowing the title or composer.

How can active learning help students understand dissonance and resolution?

Active learning, particularly through collaborative composition, allows students to feel the 'pull' of a chord. When they physically play a dissonant interval and then resolve it, they experience the physical and emotional relief that theory books only describe. This 'muscle memory' of music theory leads to much higher retention and more creative application in their own compositions.