- unitid
-
{"value"=>"1135743", "type"=>"local_mss"}
- unitdate
-
{"value"=>"1931 March 4", "type"=>"inclusive", "normal"=>"1931-03-04"}
- date_inclusive_start
-
1931
- date_inclusive_end
-
1931
- keydate
-
1931-03-04
- date_start
-
1931-03-04
- date_end
-
1931-03-04
- unittitle
-
{"value"=>"Program: Liederen-Avond Marya Freund. Recital of works by Stravinsky, Mussorgsky, Ravel, Berg, Mahler, and others. Olga Moskovsky-Elias, piano. Concertgebouw, Amsterdam"}
- container
-
{"type"=>"box", "value"=>"2"}
{"type"=>"folder", "value"=>"44"}