- unitid
-
{"value"=>"3145347", "type"=>"local_mss"}
- unitdate
-
{"value"=>"May 1960", "type"=>"inclusive", "normal"=>"1960-05"}
{"value"=>"undated 1960", "type"=>"inclusive"}
- unittitle
-
{"value"=>"<span class=\"title\">Andrea Chénier</span>, Metropolitan Opera House, New York City"}
- scopecontent
-
{"value"=>"<p>Includes Salvatore Baccaloni, Kurt Baum, Zinka Milanov, Rosalind Elias, George Cehanovsky, Richard Tucker, Hertha Glaz, Ettore Bastianini, Mignon Dunn, and others</p>"}
- container
-
{"type"=>"box", "value"=>"8"}
{"type"=>"folder", "value"=>"3"}
- date_start
-
1960-05
- keydate
-
1960-05
- date_end
-
1960-05
- date_inclusive_start
-
1960
- date_inclusive_end
-
1960