See Keynote.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). key tone. Retrieved September 24, 2026, from http://smartdefine.org/key_tone/definitions/2025334 |
| Chicago | Webster's. 2011. "key tone" http://smartdefine.org/key_tone/definitions/2025334 (accessed September 24, 2026). |
| Harvard | Webster's 2011, key tone, Smart Define, viewed 24 September, 2026, <http://smartdefine.org/key_tone/definitions/2025334>. |
| MLA | Webster's. "key tone" 27 May 2011. Web. 24 September 2026. <http://smartdefine.org/key_tone/definitions/2025334> |