Into the Twentieth Century area of study: the features of early twentieth-century music including impressionism (whole-tone and modal scales, parallel chords, blurred tonality, rich colour) and neoclassicism, analysed through set works by Debussy and Poulenc.

What this dot point is asking

This is one of the optional areas of study in the WJEC Appraising exam. It asks you to recognise and analyse the features of early twentieth-century music, especially impressionism, through its set works: works by Debussy (impressionism) and Poulenc (a leaner, neoclassical, witty style). You should be able to describe the harmony, scales, texture and colour of this music using correct terms.

The answer

Impressionism: Debussy

The effect is a floating, ambiguous soundworld that suggests rather than states, like an impressionist painting. The Nocturnes (Nuages, meaning "clouds") are a classic example, with slow-moving parallel chords and a famous cor anglais theme.

Neoclassicism and wit: Poulenc

The set works pair Debussy with Poulenc, whose style is a contrasting early twentieth-century voice: leaner, neoclassical and witty. Poulenc favours clearer textures and phrasing than Debussy, is more diatonic but spices his music with wrong-note chromaticism (unexpected dissonant notes), abrupt mood-shifts and surprising harmony, often in a chamber idiom such as the Trio for oboe, bassoon and piano. Where Debussy dissolves form into colour, Poulenc keeps clearer shapes and a playful, tuneful charm.

The musical elements in this style

Form and listening

Form in this music is often fluid and through-composed rather than built on Classical templates, with sections defined by changes of colour, texture and key area. In the exam you may be played an extract and asked to identify and describe these features (the scales, the parallel chords, the orchestration, the mood), so listening for colour and harmony is as important as listening for tune and structure.

Examples in context

Model paragraph (Debussy's impressionist soundworld). Debussy builds atmosphere by loosening the rules of tonality. In a piece like Nuages the harmony refuses to settle: slow chords glide in parallel motion, sevenths and ninths sliding side by side without resolving, and a whole-tone or modal colour removes the familiar pull towards a tonic, so the music seems to float. Melody is fragmentary and modal, a cor anglais idea returning like a recurring image rather than a developed theme, and the orchestration is chosen for colour, muted strings, harp and flute washing the texture in soft light. There is little Classical argument here; the form drifts between shades of sound. Describing such a passage means naming the whole-tone or modal writing, the parallel seventh and ninth chords, the blurred tonality, the delicate orchestration and the fluid, suggestive form.

Try this

Q1. What is the whole-tone scale, and why does it blur tonality? [2 marks]

• Cue. A scale of six notes a tone apart with no semitones, so there is no leading note and no clear pull to a tonic.

Q2. Name two features of Debussy's impressionist style. [2 marks]

• Cue. Parallel chords (often sevenths and ninths) and blurred tonality using whole-tone or modal scales (also delicate orchestral colour).

Q3. Analyse how Debussy creates an impressionist soundworld, with reference to a set work. [20 marks]

• What the marker wants. A located analysis of the harmony and scales (whole-tone, modal, parallel sevenths and ninths, unresolved dissonance), the layered texture and atmospheric orchestration, and the fluid form that together produce a floating, suggestive impressionist effect.