Music Theory · Scale Degrees & Identifying the Key

Both candidate keys share a signature. What accidental, if present, proves the piece is in the minor key rather than the major?

Sign in to see the full answer — free to start on the web.

This is one card from the KnowCard library. The full way to learn it — spaced-repetition review, progress tracking, and AI explanations — lives in the KnowCard app, free to start on the web. iOS & Android are coming soon.

Get started — it’s free

Already have an account? Sign in →

More in Scale Degrees & Identifying the Key

Which scale degree is the supertonic, and where does its name come from?
Why is the mediant (3rd degree) such an important note when classifying a scale?
Two scales share the same tonic and dominant but differ in quality (major vs minor). Which degree tells them apart, and why?
Why is the leading tone described as "essential" for identifying a piece's key, especially in minor?
A key signature alone never points to exactly one key. How many keys does it give you, and which two?
Given the two candidate keys from a key signature, what is the simplest melodic clue that usually reveals the tonic?