<asdf>
#
An ASDF file must contain a single top-level <asdf>
element
with a required version
attribute.
Currently, only version="0.4"
is supported.
The <asdf>
element can optionally contain <head> and <body> sub-elements.
If there is no <body>
element, all sub-elements of <asdf>
(except an optional <head>
element)
are treated as if they were contained in a <body>
element,
which in turn behaves like an implicit <seq>,
see <head> and <body>.
For example, the clips in implicit-seq.asd
are played in sequence:
<asdf version="0.4">
<clip file="audio/xmas.wav" pos="-2.5 0" />
<clip file="audio/ukewave.ogg" pos="2.5 0" />
</asdf>