(credit:Philicia Endelman) For the second opera in their inaugural season, Los Angeles company Numi Opera presented Erich Wolfgang Korngold’s rarely-performed one-act comedy “Der Ring des Polykrates” at Zipper Hall at the Colburn School. Numi Opera, formed by Gail R Gordon, is dedicated to works by composers whose voices have been silenced, in particular by Hitler whose rise in the 1930s {…}