Apologies for the delayed review of New York City Opera's world premiere of Ted Rosenthal's Dear Erich. The sold-out performances were January 9-13, 2019 at the National Yiddish Theatre Folksbiene at The Museum of Jewish Heritage – A Living Memorial to the Holocaust.  Before finally reporting on Rosenthal's loving tribute to his father and the grandmother he never met, I wanted to visit the Museum.  An opportunity presented itself with the exhibit Auschwitz. Not long ago. Not far away, on view now through January 3, 2020.  Displayed are 700 artifacts and materials on loan from over 20 institutions and private collections, including the Auschwitz-Birkenau State Museum. The Museum'