Microsoft DirectX 8.0 (C++)

Band Track Form

The band track form can be a top-level form but is also found as the data part of a Track Form. It is organized as follows:

RIFF( 'DMBT'
    [<bdth-ck>]     // Band track header
    [<guid-ck>]     // GUID for band track
    [<vers-ck>]     // Version information
    [<UNFO-list>]   // Name, author, copyright information, comments
    <lbdl-list>     // List of band lists
    )

<bdth-ck>

This optional chunk contains header information for a band track. The only data in the structure is a flag for automatic downloading.

<bnth-ck> -> bdth( <DMUS_IO_BAND_TRACK_HEADER> )

<guid-ck>, <vers-ck>, <UNFO-list>

For information on these three chunks, see Common Chunks.

<lbdl-list>

The last chunk contains one or more bands.

<lbdl-list> -> LIST( 'lbdl'
    <lbnd-list>...
    )

Each band is encapsulated in a list of the following type.

<lbnd-list> -> LIST( 'lbnd'
    <bdih-ck> or <bd2h-ck>
    <DMBD-form>
    )

The band list begins with a header. In older files, this is <bdih-ck>; newer content uses <bd2h-ck>.

<bdih-ck> -> ( <DMUS_IO_BAND_ITEM_HEADER> )
 
<bd2h-ck> -> ( <DMUS_IO_BAND_ITEM_HEADER2> )

The header is followed by a Band Form containing information about the instruments in the band.