A propos des frettes voici ce qui est dit :
"...all the Lutes which I can remember used eight frets, and so ended at the Semitonium cum Diapente.
But yet as Plautus saith, Nature thirsting after knowledge, is alwayes desirous to invent and seeke more, by the wittie conceit (which I have seene, and not altogether to be disalowed) of our most famous countriman M. Mathias Mason Lutenist, and one of the Groomes of his Majesties most honourable Privie Chamber, (as it hath ben told me,) invented three frets more, the which were made of wood, and glued upon the belly, and from thence about some few yeeres after, by the French Nation, the neckes of the lutes were lengthned, and thereby increased two frets more, so as all those Lutes which are most received and disired, are of tenne frets."
Dowland constate l'évolution mais probablement ne l'a pas initiée lui même puisqu'il l'attribue à Mason. (voir l'excellent article sur le luth de Dowland de Martin Sheperd (en anglais...)
Carpe diem, quam minimum credula postero. (Horace)