Grade 7 Music Theory, Unit 4, Lesson 1 of 4
Brainlag Music

Building a diminished seventh

Music theory, Diminished sevenths, 12 minutes

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Four notes, each a minor 3rd above the last, on the leading note of a minor key.

Four minor 3rds

In A minor: G sharp, B, D, F

In a minor key, the seventh chord on the leading note has four notes, each a minor 3rd above the last: in A minor, G sharp, B, D and F. It is called the diminished seventh after the diminished 7th between its root and its 7th. Its label is VII7.

The rest of this lesson and its 5 practice questions are in Brainlag Music Theory.

Screen 1 of 3, free to read.

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