Walter Meyer wrote concerning Bacewicz:
>I assume the composer's name is coincidental and not a German/Slavic
>version of "Violason" from "Bratsche" (viola) and "wicz" (a Slavic proper
>name suffix corresponding to our "son")!
It has nothing to do with Bratsche. And there is no "r" in Bacewicz.
Besides, surely you know that Bratsche comes from "[viola da] braccio".
The family was Lithuanian and some used the name Bacevicius, but this
seems to be actually a Lithuanized form of a Polish name.
-Margaret Mikulska