- unitid
-
{"value"=>"3145271", "type"=>"local_mss"}
- unitdate
-
{"value"=>"June 1961", "type"=>"inclusive", "normal"=>"1961-06"}
- unittitle
-
{"value"=>"<span class=\"title\">Martha</span>, Metropolitan Opera House, New York City"}
- scopecontent
-
{"value"=>"<p>Includes Victoria de los Angeles, Richard Tucker, Giorgio Tozzi, Teresa Stratas, Richard Tucker, Rosalind Elias, and others</p>"}
- container
-
{"type"=>"box", "value"=>"6"}
{"type"=>"folder", "value"=>"1"}
- date_start
-
1961-06
- keydate
-
1961-06
- date_end
-
1961-06
- date_inclusive_start
-
1961
- date_inclusive_end
-
1961