I didn't see much info on this here, but the term is used a lot here and I get the impression it's used in different ways. We often hear the comment something like: "This string has lots of fundamental". "Spiros, Evahs, Flexocores and Original Superflexibles 92" -- whatever -- have great "fundamental". I'd like to hear what you all mean by that. Do you mean focus and clarity of tone? Do you mean volume? Or is it also a relative thing, like, it also has to do with how that particular string vibrates and resounds on your bass, thus producing clear focused notes with good volume? If this is a term we borrow from physics, are we using it in a different way when we talk about bass strings?