The IDirectMusicStyle::GetEmbellishmentLength method finds the shortest and longest lengths for patterns of the specified embellishment type and groove level.
HRESULT GetEmbellishmentLength(
  DWORD dwType, 
  DWORD dwLevel, 
  DWORD* pdwMin, 
  DWORD* pdwMax
);
 If the method succeeds, the return value is S_OK or S_FALSE.
If the method fails, the return value may be E_POINTER.
If there are no patterns of the specified type and groove level, the method returns S_FALSE.
  Windows NT/2000: Requires Windows 2000.
  Windows 95/98: Requires Windows 95 or later. Available as a redistributable for Windows 95.
  Header: Declared in dmusici.h.