HSC Music 1 (NSW) key terms

The sense of a central key note around which a piece is organised, created through scale patterns, chord progressions and cadences. It may be firmly major or minor, ambiguous, or deliberately unsettled in modern works.

A change of key within a piece, usually prepared by a pivot chord or a chromatic shift. Listeners hear it as a move to a new tonal centre rather than a temporary colouring of the original key.

A melodic and harmonic formula that closes a phrase. Perfect and imperfect cadences end on the tonic chord; interrupted and plagal cadences create different degrees of finality, from full stop to gentle sigh.

Music that stays within the seven notes of a major or minor scale without added accidentals. Diatonic melodies and chords sound stable and are often contrasted with chromatic or modal writing in analysis questions.

The use of notes outside the prevailing key, often as passing tones, altered chords or expressive inflections. It heightens tension and colour, and is a common feature to identify when comparing tonal styles.

A short, memorable musical idea, such as a rhythmic figure or melodic fragment, that is repeated, varied or developed across a work. Motifs help unify pieces and give listeners something to track.

The process of reshaping a theme through transposition, inversion, rhythmic change, fragmentation or new harmonisation. It is central to sonata-style and film-score writing, where one idea generates much of the material.

Immediate repetition of a melodic or chordal pattern at a higher or lower pitch level. Sequences build momentum and are easy to hear, making them a frequent target in aural and analysis questions.

A short rhythmic or melodic pattern repeated persistently, often in the bass, while other parts change above it. It creates drive and unity in styles from Baroque ground bass to modern popular music.

A catchy, repeated instrumental figure that anchors a song or section, especially in rock, funk and jazz. Riffs are usually short, rhythmically distinctive and memorable enough to be recognised on first hearing.

The felt sense of rhythmic momentum produced by interacting parts, especially bass and drums. It describes how a pattern 'sits' in time, including subtle placement ahead of or behind the beat.

Accenting notes or chords on weak beats or between beats, so expected stresses are displaced. It creates energy and surprise and is common in jazz, Latin and popular styles.

Two or more contrasting rhythmic patterns sounding at once, such as three against two. The layers interact to create a dense, interlocking texture rather than a single shared pulse.

The speed of the music's underlying pulse, often shown by a metronome mark or an Italian term such as allegro or adagio. Changes of tempo, whether gradual or sudden, shape the mood and drama.

Expressive flexibility of tempo, where the performer stretches and compresses time for phrasing. It is heard clearly in Romantic piano music and jazz ballads, and is usually described as push and pull.

The recurring pattern of strong and weak beats, such as duple, triple or compound groupings. Meter is notated by a time signature and provides the framework against which rhythm and syncopation play.

How musical lines are combined and layered: monophonic, homophonic, polyphonic or heterophonic, plus density and spacing. Texture descriptions should mention the number of parts and their relationship, not just a label.

A texture in which two or more independent melodic lines sound together, each with its own contour and rhythm. Imitation and counterpoint are typical, as in fugues and many Renaissance vocal works.

A texture with one dominant melody supported by chords or accompanying parts moving largely together. It is the most common texture in popular song and hymn writing, and is easily recognised aurally.

A device where one part presents a melodic idea and another answers with the same idea shortly after, perhaps at a different pitch. It creates conversational interplay and is central to canons and fugues.

The art of combining independent melodic lines so they remain harmonious and interesting together. Good counterpoint balances contrary motion, consonance and dissonance, and clear voice leading.

The tone colour or quality that distinguishes one sound source from another, even at the same pitch and volume. It depends on overtones, attack and playing technique, and is a key element in describing instrumentation.

The particular instruments or voices chosen for a work and how they are combined. Analysis should note families, doubling, solo passages and any electronic or sampled sounds that shape the overall colour.

The craft of assigning musical material to instruments for balance, colour and clarity. It includes doubling, register choices, blending families and creating contrast between sections of a work.

How individual notes are attacked and released: staccato, legato, accent, tenuto, pizzicato or muted. Articulation shapes phrasing and character, and is often a telling detail in comparative listening.

The shaping of a musical line into coherent, breathing units, analogous to sentences in speech. Performers convey phrasing through dynamics, articulation, rubato and the placing of cadences.

The loudness level of music and the changes between levels, notated from pianissimo to fortissimo or with hairpins and accents. Dynamics create contrast, build climaxes and reveal structural shape.

How a work is divided into melodic units such as motives, phrases, periods and sections. Recognising phrase lengths and their relationships helps explain form, balance and points of arrival.

A two-part structure, usually labelled AB, where the first section moves away from the tonic and the second returns to it. Each part is often repeated, and the design is common in Baroque dances.

A three-part structure, ABA, in which a contrasting middle section is framed by a return of the opening material. The return may be varied, and the form is common in da capo arias and piano miniatures.

A form built on a recurring main theme alternating with contrasting episodes, typically ABACA. The repeated refrain gives a sense of return and stability, while episodes supply contrast and forward motion.

A chord shared by the old and new keys, used to smooth a modulation. It is heard as belonging to both tonal areas, so the change of key feels logical rather than abrupt.

The distance in pitch between two notes, measured in scale steps and described as major, minor, perfect, augmented or diminished. Identifying intervals by ear underpins melody transcription and harmony questions.

Three or more notes sounded together, usually built in thirds to form triads or sevenths. Chords may be major, minor, diminished or augmented, and their progression shapes harmony and style.

The aural skill of writing down a melody after hearing it, using intervals, rhythm and tonality to reconstruct the notes. It tests accurate hearing of pitch, metre and phrase shape under time pressure.

Notating a rhythm heard in performance, including note values, rests, metre and syncopation. Success depends on finding the pulse quickly and grouping beats into recognisable patterns.

Following a notated score while listening, tracking entries, dynamics and instrumentation across staves. It supports accurate analysis and helps candidates link what they hear to written musical features.

The recurring features that identify a style or era, such as Baroque ornamentation, Classical balance, Romantic expression or rock backbeat. Naming and justifying these features is central to essay and listening answers.