Re: [PATCH 0/9] MR3782: dmime: Stub graph and tool interfaces for the performance.

[Michael Stefaniuc (＠mstefani)]

As this puzzled me too and to document it for posterity:
While there is a dmime/graph.c that implements an DirectMusicGraph object that one has nothing to do with the IDirectMusicGraph interface implemented by the DirectMusicPerformance object.
The MS documentation for IDirectMusicPerformance8::GetGraph() explains it in the remarks.

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https://gitlab.winehq.org/wine/wine/-/merge_requests/3782#note_44855