- unitid
-
{"value"=>"3259948", "type"=>"local_mss"}
{"value"=>"224448", "type"=>"local_mss_av"}
- unitdate
-
{"value"=>"1989 October 6", "type"=>"inclusive", "normal"=>"1989-10-06"}
- unittitle
-
{"value"=>"Challenge"}
- physdesc
-
{"format"=>"structured", "physdesc_components"=>[{"name"=>"extent", "value"=>"1 audio recording", "unit"=>"audio_recordings"}]}
- scopecontent
-
{"value"=>"<p>A concert performance of three unidentified works by unidentified composers (none by Lucier).</p>"}
- date_start
-
1989-10-06
- keydate
-
1989-10-06
- date_end
-
1989-10-06
- date_inclusive_start
-
1989
- date_inclusive_end
-
1989