In sixteenth-century Spanish vihuela books and treatises, the issue of dedillo is foregrounded as an essential technique in playing the instrument, one that has remained elusive both as a concept within vihuela history and as a technique among modern players. For today’s performer, the incorporation of this technique raises many questions: do the sources provide an adequate description of dedillo? To what advantage may this technique be used? How does the use of dedillo impact right-hand position? In his book on Luis Milan, Luis Gassar recently drew attention to this significant problem in modern vihuela performance...