The early music world has been stunned recently by a controversial new find, a single previously unknown lute duet in poor handwriting. It is the only piece of music in what is otherwise an Elizabethan commonplace or household book consisting mainly of lists of building materials. This article gives a broad outline of what the manuscript tells us about the remarkable Robert Mason, a man ahead of his time. At the foot of the article is a video reconstruction of his only surviving piece of music, a lute duet bearing his name. This is being released a day ahead of my talk to the Association of Professional Renaissance Instrument Luthiers at the Festival Of Organological Lutherie.