Timbre: Also known as tone quality or tone color, it is the perceived sound quality of a given note.
Simpler Definition: Timbre is the difference in sound between two instruments, i.e. a guitar and a piano playing the same note at the same volume.
Video Explanations:
Video: What is Timbre? | Beginner | Music Production | Berklee Online
Video: What is Tone Color? (Timbre)
Written Articles:
Article: Timbre: How to Change Your Tone with Your Picking Hand
Article: Hear the Difference: Timbre, Texture, and Tone
Fifty Favorite Effect Pedals for Sale:
Categories: Tone Language and Definitions
Tags: color, sound quality