I associate "bright" with "trebley" or in extreme cases, "tiny or metalic". I also understand it to mean easy to hear the true pitch. Is this about right? I also associate "dark" with more "bassey" or deeper in tone, but does "dark" also mean less "clear" or harder to distinguish pitches? Also does "dark" imply more overtones and a fuller or more rich sound? Is it also possible to have "bright" strings with more overtones or a fuller, richer sound? Or would that automatically make the "bright" string, less "clear"?