(Photo credit: Anna Kucera) In his notes on the work, Erin Helyard, conductor of Pinchgut Opera’s recent “Messiah,” states that there are “about 10 identifiably different versions of ‘Messiah’ that Händel appears to have approved, developed, or tolerated following its composition in 1741.” “Why perform the first version,” he asked, posing a question by which to judge this, Pinchgut’s final {…}