- unitid
-
{"value"=>"3145350", "type"=>"local_mss"}
- unitdate
-
{"value"=>"May 1960", "type"=>"inclusive", "normal"=>"1960-05"}
- unittitle
-
{"value"=>"<span class=\"title\">Der Zigeunerbaron</span>, Metropolitan Opera House, New York City"}
- scopecontent
-
{"value"=>"<p>Includes Osie Hawkins, Thelma Votipka, Nicolai Gedda, and others</p>"}
- container
-
{"type"=>"box", "value"=>"8"}
{"type"=>"folder", "value"=>"4"}
- date_start
-
1960-05
- keydate
-
1960-05
- date_end
-
1960-05
- date_inclusive_start
-
1960
- date_inclusive_end
-
1960