Some fretted-instrument players produce vibrato by wobbling the finger along the string (ie, towards the nut, towards the bridge, and then back toward the nut).
Do lutes vary in their responsiveness to this? In other words, given the same finger movement, might one lute produce a strong vibrato and another lute barely enough vibrato to hear? To get on or off this list see list information at http://www.cs.dartmouth.edu/~wbc/lute-admin/index.html
