What do you mean, cannot change its magnitude easily? I can just pluck it harder or softer? Do you mean frequency response? And the bandwidth of a resonant cir

What do you mean, cannot change its magnitude easily? I can just pluck it harder or softer? Do you mean frequency response? And the bandwidth of a resonant circuit depends on its Q. Hence my question about a wet string’s Q, which might well be different from a guitar string’s Q. https://www.allaboutcircuits.com/uploads/articles/series-resonant-circuits-graph3.jpg https://www.allaboutcircuits.com/uploads/articles/series-res...