Hum, from the conclusions of the somewhat parallel case of Hans Franke (which is about a catalog of ca. 800 "lost" works and 87 "preserved" works, and a fraudulent CV, as well), already referred to by @dfan in this very thread,

> All in all, the impression one gets is of a complacent, incurious German musical establishment which was not interested at all in Franke or his music but was happy to help Franke's daughter establish her foundation and secure funding from it.

https://www.unsungcomposers.com/forum/index.php/topic,6910.m...