DMUS_PMSGF_MUSICTIME        = 2,      /* if mtTime is valid */
    DMUS_PMSGF_TOOL_IMMEDIATE   = 4,      /* if PMSG should be processed immediately */ 
    DMUS_PMSGF_TOOL_QUEUE       = 8,      /* if PMSG should be processed a little early, at Queue time */
    DMUS_PMSGF_TOOL_ATTIME      = 0x10,   /* if PMSG should be processed at the time stamp */
    DMUS_PMSGF_TOOL_FLUSH       = 0x20,   /* if PMSG is being flushed */
    DMUS_PMSGF_LOCKTOREFTIME    = 0x40,   /* if rtTime can not be overriden by a tempo change. */
    DMUS_PMSGF_DX8              = 0x80    /* if the message has DX8 or later extensions. */
    /* The values of DMUS_TIME_RESOLVE_FLAGS may also be used inside the */
    /* DMUS_PMSG's dwFlags member. */
} DMUS_PMSGF_FLAGS;

/* DMUS_PMSGT_TYPES fill the DMUS_PMSG's dwType member */
typedef enum enumDMUS_PMSGT_TYPES
{
    DMUS_PMSGT_MIDI             = 0,      /* MIDI short message */
    DMUS_PMSGT_NOTE             = 1,      /* Interactive Music Note */
    DMUS_PMSGT_SYSEX            = 2,      /* MIDI long message (system exclusive message) */
    DMUS_PMSGT_NOTIFICATION     = 3,      /* Notification message */
    DMUS_PMSGT_TEMPO            = 4,      /* Tempo message */
    DMUS_PMSGT_CURVE            = 5,      /* Control change / pitch bend, etc. curve */
    DMUS_PMSGT_TIMESIG          = 6,      /* Time signature */
    DMUS_PMSGT_PATCH            = 7,      /* Patch changes */
    DMUS_PMSGT_TRANSPOSE        = 8,      /* Transposition messages */
    DMUS_PMSGT_CHANNEL_PRIORITY = 9,      /* Channel priority */
    DMUS_PMSGT_STOP             = 10,     /* Stop message */
    DMUS_PMSGT_DIRTY            = 11,     /* Tells Tools that cache GetParam() info to refresh */
    DMUS_PMSGT_WAVE             = 12,     /* Carries control information for playing a wave. */
    DMUS_PMSGT_LYRIC            = 13,     /* Lyric message from lyric track. */
    DMUS_PMSGT_SCRIPTLYRIC      = 14,     /* Lyric message sent by a script with the Trace function. */
    DMUS_PMSGT_USER             = 255     /* User message */
} DMUS_PMSGT_TYPES;

/* DMUS_SEGF_FLAGS correspond to IDirectMusicPerformance::PlaySegment, and other API */
typedef enum enumDMUS_SEGF_FLAGS
{
    DMUS_SEGF_REFTIME           = 1<<6,   /* 0x40 Time parameter is in reference time  */
    DMUS_SEGF_SECONDARY         = 1<<7,   /* 0x80 Secondary segment */
    DMUS_SEGF_QUEUE             = 1<<8,   /* 0x100 Queue at the end of the primary segment queue (primary only) */
    DMUS_SEGF_CONTROL           = 1<<9,   /* 0x200 Play as a control track (secondary segments only) */
    DMUS_SEGF_AFTERPREPARETIME  = 1<<10,  /* 0x400 Play after the prepare time (See IDirectMusicPerformance::GetPrepareTime) */
    DMUS_SEGF_GRID              = 1<<11,  /* 0x800 Play on grid boundary */
    DMUS_SEGF_BEAT              = 1<<12,  /* 0x1000 Play on beat boundary */
    DMUS_SEGF_MEASURE           = 1<<13,  /* 0x2000 Play on measure boundary */
    DMUS_SEGF_DEFAULT           = 1<<14,  /* 0x4000 Use segment's default boundary */
    DMUS_SEGF_NOINVALIDATE      = 1<<15,  /* 0x8000 Play without invalidating the currently playing segment(s) */
    DMUS_SEGF_ALIGN             = 1<<16,  /* 0x10000 Align segment with requested boundary, but switch at first valid point */
    DMUS_SEGF_VALID_START_BEAT  = 1<<17,  /* 0x20000 In conjunction with DMUS_SEGF_ALIGN, allows the switch to occur on any beat. */
    DMUS_SEGF_VALID_START_GRID  = 1<<18,  /* 0x40000 In conjunction with DMUS_SEGF_ALIGN, allows the switch to occur on any grid. */
    DMUS_SEGF_VALID_START_TICK  = 1<<19,  /* 0x80000 In conjunction with DMUS_SEGF_ALIGN, allows the switch to occur any time. */
    DMUS_SEGF_AUTOTRANSITION    = 1<<20,  /* 0x100000 Compose and play a transition segment, using either the transition template or transition embedded in song. */
    DMUS_SEGF_AFTERQUEUETIME    = 1<<21,  /* 0x200000 Make sure to play after the queue time. This is default for primary segments */
    DMUS_SEGF_AFTERLATENCYTIME  = 1<<22,  /* 0x400000 Make sure to play after the latency time. This is true for all segments, so this is a nop */
    DMUS_SEGF_SEGMENTEND        = 1<<23,  /* 0x800000 Play at the next end of segment. */
    DMUS_SEGF_MARKER            = 1<<24,  /* 0x1000000 Play at next marker in the primary segment. If there are no markers, default to any other resolution requests. */
    DMUS_SEGF_TIMESIG_ALWAYS    = 1<<25,  /* 0x2000000 Even if there is no primary segment, align start time with current time signature. */
    DMUS_SEGF_USE_AUDIOPATH     = 1<<26,  /* 0x4000000 Uses the audio path that is embedded in the segment or song. */
    DMUS_SEGF_VALID_START_MEASURE = 1<<27, /* 0x8000000 In conjunction with DMUS_SEGF_ALIGN, allows the switch to occur on any bar. */
    DMUS_SEGF_INVALIDATE_PRI    = 1<<28   /* 0x10000000 invalidate only the current primary seg state */
} DMUS_SEGF_FLAGS;

#define DMUS_SEG_REPEAT_INFINITE    0xFFFFFFFF  /* For IDirectMusicSegment::SetRepeat*/
#define DMUS_SEG_ALLTRACKS          0x80000000  /* For IDirectMusicSegment::SetParam() and SetTrackConfig() - selects all tracks instead on nth index. */
#define DMUS_SEG_ANYTRACK           0x80000000  /* For IDirectMusicSegment::GetParam() - checks each track until it finds one that returns data (not DMUS_E_NOT_FOUND.) */
                                                

/* DMUS_TIME_RESOLVE_FLAGS correspond to IDirectMusicPerformance::GetResolvedTime, and can */
/* also be used interchangeably with the corresponding DMUS_SEGF_FLAGS, since their values */
/* are intentionally the same */
typedef enum enumDMUS_TIME_RESOLVE_FLAGS
{
    DMUS_TIME_RESOLVE_AFTERPREPARETIME  = DMUS_SEGF_AFTERPREPARETIME,
    DMUS_TIME_RESOLVE_AFTERQUEUETIME    = DMUS_SEGF_AFTERQUEUETIME,
    DMUS_TIME_RESOLVE_AFTERLATENCYTIME  = DMUS_SEGF_AFTERLATENCYTIME,
    DMUS_TIME_RESOLVE_GRID              = DMUS_SEGF_GRID,
    DMUS_TIME_RESOLVE_BEAT              = DMUS_SEGF_BEAT,
    DMUS_TIME_RESOLVE_MEASURE           = DMUS_SEGF_MEASURE,
    DMUS_TIME_RESOLVE_MARKER            = DMUS_SEGF_MARKER,
    DMUS_TIME_RESOLVE_SEGMENTEND        = DMUS_SEGF_SEGMENTEND,
} DMUS_TIME_RESOLVE_FLAGS;

/* The following flags are sent inside the DMUS_CHORD_KEY.dwFlags parameter */
typedef enum enumDMUS_CHORDKEYF_FLAGS
{
    DMUS_CHORDKEYF_SILENT            = 1,      /* is the chord silent? */
} DMUS_CHORDKEYF_FLAGS;

#define DMUS_MAXSUBCHORD 8

typedef struct _DMUS_SUBCHORD
{
    DWORD   dwChordPattern;     /* Notes in the subchord */
    DWORD   dwScalePattern;     /* Notes in the scale */
    DWORD   dwInversionPoints;  /* Where inversions can occur */
    DWORD   dwLevels;           /* Which levels are supported by this subchord */
    BYTE    bChordRoot;         /* Root of the subchord */
    BYTE    bScaleRoot;         /* Root of the scale */
} DMUS_SUBCHORD;

typedef struct _DMUS_CHORD_KEY
{
    WCHAR           wszName[16];        /* Name of the chord */
    WORD            wMeasure;           /* Measure this falls on */
    BYTE            bBeat;              /* Beat this falls on */
    BYTE            bSubChordCount;     /* Number of chords in the list of subchords */
    DMUS_SUBCHORD   SubChordList[DMUS_MAXSUBCHORD]; /* List of sub chords */
    DWORD           dwScale;            /* Scale underlying the entire chord */
    BYTE            bKey;               /* Key underlying the entire chord */
    BYTE            bFlags;             /* Miscelaneous flags */
} DMUS_CHORD_KEY;

/* DMUS_NOTE_PMSG */
typedef struct _DMUS_NOTE_PMSG
{
    /* begin DMUS_PMSG_PART */
    DMUS_PMSG_PART
    /* end DMUS_PMSG_PART */

    MUSIC_TIME mtDuration;     /* duration */
    WORD    wMusicValue;       /* Description of note in chord and key. */
    WORD    wMeasure;          /* Measure in which this note occurs */
    short   nOffset;           /* Offset from grid at which this note occurs */
    BYTE    bBeat;             /* Beat (in measure) at which this note occurs */
    BYTE    bGrid;             /* Grid offset from beat at which this note occurs */
    BYTE    bVelocity;         /* Note velocity */
    BYTE    bFlags;            /* see DMUS_NOTEF_FLAGS */
    BYTE    bTimeRange;        /* Range to randomize time. */
    BYTE    bDurRange;         /* Range to randomize duration. */
    BYTE    bVelRange;         /* Range to randomize velocity. */
    BYTE    bPlayModeFlags;    /* Play mode */
    BYTE    bSubChordLevel;    /* Which subchord level this note uses.  */
    BYTE    bMidiValue;        /* The MIDI note value, converted from wMusicValue */
    char    cTranspose;        /* Transposition to add to midi note value after converted from wMusicValue. */
} DMUS_NOTE_PMSG;

typedef enum enumDMUS_NOTEF_FLAGS
{
    DMUS_NOTEF_NOTEON = 1,              /* Set if this is a MIDI Note On. Otherwise, it is MIDI Note Off */
    /* DX8 flags: */
    DMUS_NOTEF_NOINVALIDATE = 2,        /* Don't invalidate this note off. */
    DMUS_NOTEF_NOINVALIDATE_INSCALE = 4,/* Don't invalidate if still within the scale. */
    DMUS_NOTEF_NOINVALIDATE_INCHORD = 8,/* Don't invalidate if still within the chord. */
    DMUS_NOTEF_REGENERATE = 0x10,       /* Regenerate the note on an invalidate. */
} DMUS_NOTEF_FLAGS;

/* The DMUS_PLAYMODE_FLAGS are used to determine how to convert wMusicValue
   into the appropriate bMidiValue.
*/

typedef enum enumDMUS_PLAYMODE_FLAGS
{
    DMUS_PLAYMODE_KEY_ROOT          = 1,  /* Transpose on top of the key root. */
    DMUS_PLAYMODE_CHORD_ROOT        = 2,  /* Transpose on top of the chord root. */
    DMUS_PLAYMODE_SCALE_INTERVALS   = 4,  /* Use scale intervals from scale pattern. */
    DMUS_PLAYMODE_CHORD_INTERVALS   = 8,  /* Use chord intervals from chord pattern. */
    DMUS_PLAYMODE_NONE              = 16, /* No mode. Indicates the parent part's mode should be used. */
} DMUS_PLAYMODE_FLAGS;

/* The following are playback modes that can be created by combining the DMUS_PLAYMODE_FLAGS
   in various ways:
*/

/* Fixed. wMusicValue holds final MIDI note value. This is used for drums, sound effects, and sequenced
   notes that should not be transposed by the chord or scale.
*/
#define DMUS_PLAYMODE_FIXED             0  
/* In fixed to key, the musicvalue is again a fixed MIDI value, but it
   is transposed on top of the key root. 
*/
#define DMUS_PLAYMODE_FIXEDTOKEY        DMUS_PLAYMODE_KEY_ROOT
/* In fixed to chord, the musicvalue is also a fixed MIDI value, but it
   is transposed on top of the chord root. 
*/
#define DMUS_PLAYMODE_FIXEDTOCHORD      DMUS_PLAYMODE_CHORD_ROOT
/* In Pedalpoint, the key root is used and the notes only track the intervals in
   the scale. The chord root and intervals are completely ignored. This is useful
   for melodic lines that play relative to the key root.
*/
#define DMUS_PLAYMODE_PEDALPOINT        (DMUS_PLAYMODE_KEY_ROOT | DMUS_PLAYMODE_SCALE_INTERVALS)
/* In the Melodic mode, the chord root is used but the notes only track the intervals in
   the scale. The key root and chord intervals are completely ignored. This is useful
   for melodic lines that play relative to the chord root. 
*/
#define DMUS_PLAYMODE_MELODIC           (DMUS_PLAYMODE_CHORD_ROOT | DMUS_PLAYMODE_SCALE_INTERVALS)
/* Normal chord mode is the prevalent playback mode. 
   The notes track the intervals in the chord, which is based on the chord root. 
   If there is a scale component to the MusicValue, the additional intervals 
   are pulled from the scale and added.
   If the chord does not have an interval to match the chord component of
   the MusicValue, the note is silent.
*/
#define DMUS_PLAYMODE_NORMALCHORD       (DMUS_PLAYMODE_CHORD_ROOT | DMUS_PLAYMODE_CHORD_INTERVALS)
/* If it is desirable to play a note that is above the top of the chord, the
   always play mode (known as "purpleized" in a former life) finds a position
   for the note by using intervals from the scale. Essentially, this mode is
   a combination of the Normal and Melodic playback modes, where a failure
   in Normal causes a second try in Melodic mode.
*/
#define DMUS_PLAYMODE_ALWAYSPLAY        (DMUS_PLAYMODE_MELODIC | DMUS_PLAYMODE_NORMALCHORD)

/* These playmodes are new for dx8. */
/* In PedalpointChord, the key root is used and the notes only track the intervals in
   the chord. The chord root and scale intervals are completely ignored. This is useful
   for chordal lines that play relative to the key root.
*/
#define DMUS_PLAYMODE_PEDALPOINTCHORD   (DMUS_PLAYMODE_KEY_ROOT | DMUS_PLAYMODE_CHORD_INTERVALS)

/* For completeness, here's a mode that tries for pedalpointchord, but if it fails
   uses scale intervals
*/
#define DMUS_PLAYMODE_PEDALPOINTALWAYS  (DMUS_PLAYMODE_PEDALPOINT | DMUS_PLAYMODE_PEDALPOINTCHORD)


/*  Legacy names for modes... */
#define DMUS_PLAYMODE_PURPLEIZED        DMUS_PLAYMODE_ALWAYSPLAY
#define DMUS_PLAYMODE_SCALE_ROOT        DMUS_PLAYMODE_KEY_ROOT
#define DMUS_PLAYMODE_FIXEDTOSCALE      DMUS_PLAYMODE_FIXEDTOKEY


/* DMUS_MIDI_PMSG */
typedef struct _DMUS_MIDI_PMSG
{
    /* begin DMUS_PMSG_PART */
    DMUS_PMSG_PART
    /* end DMUS_PMSG_PART */

    BYTE    bStatus;
    BYTE    bByte1;
    BYTE    bByte2;
    BYTE    bPad[1];
} DMUS_MIDI_PMSG;

/* DMUS_PATCH_PMSG */
typedef struct _DMUS_PATCH_PMSG
{
    /* begin DMUS_PMSG_PART */
    DMUS_PMSG_PART
    /* end DMUS_PMSG_PART */

    BYTE    byInstrument;
    BYTE    byMSB;
    BYTE    byLSB;
    BYTE    byPad[1];
} DMUS_PATCH_PMSG;

/* DMUS_TRANSPOSE_PMSG */