The DMUS_IO_NEXTCHORD stucture contains information about the next chord in a chord graph. It is used in the Chordmap Form.
typedef struct _DMUS_IO_NEXTCHORD {
    DWORD   dwFlags;
    WORD    nWeight;
    WORD    wMinBeats;
    WORD    wMaxBeats;
    WORD    wConnectionID;
} DMUS_IO_NEXTCHORD;
   Windows NT/2000: Requires Windows 2000.
  Windows 95/98: Requires Windows 95 or later. Available as a redistributable for Windows 95.
  Header: Declared in dmusicf.h.