Abstract: An improved capo for use with various stringed instruments is provided. The capo comprises a frame having a top arm to contact the strings and a side arm, with a jaw member and a lever member both pivotally attached to the side arm. The jaw member contacts the back of the instrument neck when the capo is closed. Mounted on the lever member is a flexible member, having a follower surface that contacts the lower surface of the jaw member during the closing action of the capo and while the capo is closed. An adjustable stop passes through the lever member such that one end of the adjustable stop contacts the lower surface of the flexible member to urge the follower surface into contact with the lower surface of the jaw member. The improved capo of the invention is easier to attach and remove than capos of the prior art, maintains better alignment between the jaw member and the lever member, is less subject to frictional wear, and optimizes the degree of dropoff along the entire useable range of the capo.