The Adagio in G minor for violin, strings, and organ continuo is a neo-Baroque composition popularly attributed to the 18th-century Venetian master Tomaso Albinoni, but actually composed by 20th-century musicologist and Albinoni biographer Remo Giazotto, purportedly based on the discovery of a manuscript fragment by Albinoni. There is a continuing scholarly debate about whether the alleged fragment was real, or a musical hoax perpetrated by Giazotto, but there is no doubt about Giazotto's authorship of the remainder of the work.
Among Giazotto's papers, Mangano discovered a modern but independent manuscript transcription of the figured bass portion, and six fragmentary bars of the first violin, "bearing in the top right-hand corner a stamp stating unequivocally the Dresden provenance of the original from which it was taken". This provides support for Giazotto's account that he did base his composition on an earlier source.
