An 8-minute video (in German with English subtitles) is now available at jpc:
https://www.jpc.de/jpcng/cpo/detail/-/art/johanna-senfter-klarinettentrio/hnum/11170347
https://www.jpc.de/jpcng/cpo/detail/-/art/johanna-senfter-klarinettentrio/hnum/11170347