Pietro Lappi(Canzoni da Suonare Libro1) No.21Double Chorus system = 5 v. + 6 v. bar1-12 : A Part, Coro 1 only bar12-22 : B Part, Coro 2 only bar22-24 : C Part, Coro 1 only bar25-43 : D Part, 3/1 bar43--53 : E Part bar53-58 : Coda http://aeolianconsort.chakin.com/Lappi.htm