DMUS_IO_CHORDMAP_SUBCHORD

The DMUS_IO_CHORDMAP_SUBCHORD structure contains information about a subchord. Used in the Chordmap Form.

Syntax

typedef struct _DMUS_IO_CHORDMAP_SUBCHORD {
  DWORD dwChordPattern;
  DWORD dwScalePattern;
  DWORD dwInvertPattern;
  BYTE  bChordRoot;
  BYTE  bScaleRoot;
  WORD  wCFlags;
  DWORD dwLevels; 
} DMUS_IO_CHORDMAP_SUBCHORD;

Members

dwChordPattern

Notes in the subchord. Each of the lower 24 bits represents a semitone, starting with the root at the least significant bit, and the bit is set if the note is in the chord.

dwScalePattern

Notes in the scale. Each of the lower 24 bits represents a semitone, starting with the root at the least significant bit, and the bit is set if the note is in the scale.

dwInvertPattern

Points in the scale at which inversions can occur. Bits that are off signify that the notes in the interval cannot be inverted. Thus, the pattern 100001111111 indicates that inversions are allowed anywhere except between the fifth and seventh degrees of a major scale.

bChordRoot

Root of the subchord, where 0 is the lowest C in the range and 23 is the top B.

bScaleRoot

Root of the scale, where 0 is the lowest C in the range and 23 is the top B.

wCFlags

Reserved for future use.

dwLevels

Bit field showing which levels are supported by this subchord. Each part in a style is assigned a level, and this chord is used only for parts whose levels are contained in this member.

Requirements

  Header: Declared in dmusicf.h.

See Also

• DirectMusic File Structures
• DMUS_SUBCHORD