- unitid
-
{"value"=>"3147172", "type"=>"local_mss"}
{"value"=>"481000", "type"=>"local_mss_av"}
- unitdate
-
{"value"=>"1980-1987", "type"=>"inclusive", "normal"=>"1980/1987"}
- unittitle
-
{"value"=>"First Performance Mixes"}
- physdesc
-
{"format"=>"structured", "physdesc_components"=>[{"name"=>"extent", "value"=>"1 audio recording", "unit"=>"audio_recordings"}]}
- scopecontent
-
{"value"=>"<p>Master copy.</p>"}
- date_start
-
1980
- keydate
-
1980
- date_end
-
1987
- date_inclusive_start
-
1980
- date_inclusive_end
-
1987
- extent_statement
-
1 audio recording