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Whatever music you wish to play, you'll need to know about intervals!

Grade 3 - Intervals (Part 2)

Train your ears for intervals. Hear how major and minor change mood, and practice naming by number and quality from written notes and sounds.

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Fascinating Fact:

Ear tip: major thirds sound bright, minor thirds sound sad. Compare C to E with C to E flat to hear the difference.

In Specialist Music Theory Grade 3, you develop interval recognition by sight and by ear. Count the letter names for the number, then check accidentals to decide the quality you hear or see.

Key Terms

Quality: The type of interval, such as perfect, major, minor, augmented, or diminished.
Inversion: Flipping an interval so the lower note becomes the upper note, and the numbers add to nine.
Consonance: Intervals that feel stable, often perfect fifths and thirds in simple harmony.

Frequently Asked Questions (Click to see answers)

How can I tell a major third from a minor third by ear?

A major third spans four semitones and sounds bright, like C to E. A minor third spans three semitones and sounds sad, like C to E flat. Sing both slowly to compare.

What steps do I follow to name an interval on the page?

First count the letter names to get the number. Build the major scale from the lower note, apply accidentals, then compare semitones to label the quality as perfect, major, minor, augmented, or diminished.

What does inversion mean in intervals for Grade 3?

Inversion swaps the notes. The interval numbers add to nine, and the qualities change pairs: major with minor, augmented with diminished, perfect stays perfect.