Thank you to composer Paul Jernberg of the Magnificat Institute for bringing this to my attention: his newly composed Mass will be premiered this weekend, with himself conducting the choir. For further information about the event, contact Suzanne Pearson at sdpearson@verizon.net.
Blessed Karl of Austria was the last Emperor of the Austro-Hungarian Empire, ascending to the throne in 1916. He died in 1922, and his cause for canonization was opened in 1949.
Here is the poster: