Intervals and scales: identifying named intervals, major and minor scales, the pentatonic and chromatic scales, and related melodic concepts in the Understanding Music question paper.

What this dot point is asking

Intervals and scales are the building blocks of melody in SQA Higher Music. An interval is the distance between two notes; a scale is the ordered set of notes a piece draws its melody and harmony from. The Understanding Music paper asks you to identify intervals (by ear and by counting on the stave) and to recognise the scale types - major, minor, pentatonic and chromatic - that give a passage its character. This dot point sets out the intervals and scales you must know, how Higher extends the National 5 list, and how to tell them apart in the exam.

The answer

The intervals examined at Higher are the named distances between two notes: the unison, second, third, fourth, fifth, sixth, seventh and octave, plus the recognition that intervals can be major, minor or perfect in quality. The scales examined are the major scale (the bright, "doh to doh" scale), the minor scale (darker, with its harmonic and melodic forms), the pentatonic scale (five notes, no semitones, a folk and Scottish sound), and the chromatic scale (all twelve semitones, moving in half steps). Built on these are melodic concepts such as the arpeggio (the notes of a chord played one after another), the broken chord, and the sequence (a melodic pattern repeated higher or lower). In the question paper you identify intervals by ear or by counting on a printed stave, and you recognise each scale by its distinctive sound and note pattern.

Intervals: measuring the distance

An interval is named by counting the letter names from the lower note to the upper, inclusively: C to E is a third (C-D-E), C to G is a fifth (C-D-E-F-G), C to the next C is an octave. The quality (major, minor, perfect) refines the size, but at Higher the reliable basics are recognising the common intervals by ear (the open sound of a fifth, the bright leap of an octave) and counting accurately on the stave.

The scales you must know

The major scale sounds bright and resolved; the minor scale sounds darker, and exists in natural, harmonic and melodic forms that differ in their sixth and seventh notes. The pentatonic scale uses only five notes and has no semitones, giving the open, folk-like sound common in Scottish music, blues and pop. The chromatic scale uses all twelve semitones, moving entirely in half steps, and is heard as a sliding, tense or decorative line.

Melodic concepts built on scales

A melody often moves through the notes of a chord rather than a scale. An arpeggio plays a chord's notes in order, up or down; a broken chord splits a chord into a repeated melodic figure. A sequence repeats a melodic idea at a higher or lower pitch, a favourite way of extending a tune. These are examinable concepts in their own right and frequently appear alongside interval and scale identification.

Examples in context

Take a Scottish folk melody. You might hear it use only five notes with no semitones (pentatonic), leap up through the notes of a chord (arpeggio), and span a wide interval such as an octave between its lowest and highest notes. Three concepts, each precisely named.

Take a romantic piano excerpt. You might hear a tense line sliding down in half steps (chromatic scale), a melodic idea stated and then repeated a step lower (sequence), and a warm leap of a sixth at a climax. The marks come from naming the scale, the device and the interval correctly.

Try this

Q1. How do you name an interval, and how big is an octave? [2 marks]

• What the marker wants. Count the letter names from the lower note to the upper inclusively; an octave spans eight notes (the same letter name, higher).

Q2. What defines the pentatonic scale? [1 mark]

• What the marker wants. A five-note scale with no semitones, giving a folk-like or open sound.

Q3. What is the difference between an arpeggio and a sequence? [2 marks]

• What the marker wants. An arpeggio plays the notes of a chord one after another; a sequence repeats a melodic pattern at a higher or lower pitch.

A note on sources

This guide is AI-written and not individually human-reviewed. The interval and scale concepts follow SQA's Higher Music course specification; verify current detail against the SQA Higher Music documents at sqa.org.uk.