Pietro Lappi(Canzoni da Suonare Libro1) No.15Double Chorus system = 3 v. + 4 v. bar1-13 : A Part(Coro 1) bar13-20 : A' Part(Coro 2) bar21-34 : B Part, 3/1 bar35-52 C Part bar52-56 : Coda http://aeolianconsort.chakin.com/Lappi.htm