- unitdate
-
{"value"=>"1957", "type"=>"inclusive", "normal"=>"1957"}
{"value"=>"1952", "type"=>"inclusive", "normal"=>"1952"}
- date_inclusive_start
-
1952
- date_inclusive_end
-
1957
- unittitle
-
{"value"=>"<span class=\"title\">Let's Understand Opera! Book 1</span>. Ed. By Thomas Philip Brown"}
- scopecontent
-
{"value"=>"<p> Contains <span class=\"title\">La Boheme, Faust, and Aida</span>. Music Associates, Inc. held the copyright in 1952 and 1955; Tams - Witmark Music Library and Music Associates, Inc. jointly held the copyright in 1957.</p>"}
- container
-
{"type"=>"box", "value"=>"29"}
{"type"=>"folder", "value"=>"3"}
- unitid
-
{"type"=>"local_mss", "value"=>"825366"}
- date_start
-
1952
- date_end
-
1957
- keydate
-
1952