We found 4 dictionaries that define the word minor keys:

General (4 matching dictionaries)

1. minor keys: Merriam-Webster
2. minor keys: Collins English Dictionary
3. minor keys: Vocabulary.com
4. minor keys: Wiktionary

(Note: See minor_key as well.)

Definitions from Wiktionary (minor key) ▸ noun:  (music) A musical key based upon a minor scale. ▸ Also see minor_key Phrases: Music written in all major and/or minor keys, more... ▸ Words similar to minor keys ▸ Usage examples for minor keys ▸ Idioms related to minor keys ▸ Wikipedia articles (New!) ▸ Words that often appear near minor keys ▸ Rhymes of minor keys ▸ Invented words related to minor keys