|Microsoft DirectX 9.0|
The chord track list contains chord data for a Track Form. It is organized as follows:
<cord-list> -> LIST( 'cord' <crdh-ck> // Header <crdb-ck>... // Chord body chunks )
<crdh-ck> -> crdh ( <DWORD> )
The header is a DWORD containing the chord root in the upper 8 bits and the scale in the lower 24 bits. For an explanation of what these bits represent, see DMUS_IO_SUBCHORD.
The body of data for the chord track list consists of information about a chord change and the component subchords:
<crdb-ck> -> crdb( <DWORD> // Size of DMUS_IO_CHORD <DMUS_IO_CHORD> <DWORD> // Number of subchords <DWORD> // Size of DMUS_IO_SUBCHORD <DMUS_IO_SUBCHORD>... )