https://bugs.winehq.org/show_bug.cgi?id=51948
--- Comment #15 from Michael Stefaniuc mstefani@winehq.org --- The attachment 71021 has mentions of __DLS_Harp.dls: 016c:trace:dmfile:dump_DMUS_OBJECTDESC - wszFileName = L"__DLS_Harp.dls" 016c:trace:dmfile:dump_DMUS_OBJECTDESC - wszFileName = L"__DLS_Harp.dls"
So something gets confused in Wine's dmusic related code. Most likely as it is automatic loading.