Unit 4, Lesson 1 of 2
Brainlag Plus

Naming any interval

Music theory, Intervals, 15 minutes

The number from the letter names, the quality from the semitones, then augmented, diminished and compound intervals, which are new at Grade 5.

First the number

An interval is the distance between two notes. Name it in two steps, number first.

The number comes from the letter names: count from the lower note to the upper one, counting both. C up to G is C, D, E, F, G: a 5th. Accidentals never change the number: C sharp up to G flat is still a 5th.

C up to G: five letter names, a 5th

The rest of this lesson and its 4 practice questions are in Plus.

Screen 1 of 6, free to read.

  • 4 exam-style questions, marked as you go, each with a worked solution
  • Anything you get wrong is saved to your flashcards