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<H2>Overview of a Script</H2>
A <B>Tao</B> script, although contained within one text file, is conceptually
split into three main sections: the <EM>declarations</EM><A NAME="1"> section;</A>
the <EM>init</EM><A NAME="2"> section;</A> and the <EM>score</EM><A NAME="3"> section.</A> The
<EM>declarations</EM> section contains instructions for creating instruments,
devices, pitches, arrays, parameters and access points etc. The
<EM>init</EM> section contains instructions for initialising the instruments,
devices, parameters and other objects. It may optionally contain
instructions for applying devices to instruments, coupling instruments
together, and specifying the initial locations of any access points. Finally
the <EM>score</EM> section contains instructions for playing the instruments
and generating output audio files during the <EM>performance</EM><A NAME="4">.</A> The term
performance is used here to refer to the run-time execution of the synthesis
scenario described in the script.
<P>The score provides a means for the user to apply time-varying excitations
to the instruments and control any instrument or device attributes via
the use of parameters. The score consists of nested
<EM>control structures</EM><A NAME="5"> which</A> allow events to be scheduled throughout
the performance. These control structures contain either further nested
control structures or <EM>statements</EM><A NAME="6">.</A> Statements are the mechanism
by which parameters are assigned values, mathematical expressions are
evaluated, instrument and device attributes are controlled etc. For a
more detailed description of the statement types available see
section <A HREF="UserManual_65.html">*</A>.
Statements are also used to specify the sound samples which are to
be written out to an Output device.
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<tr><td colspan="3" class="addr"><!-- bottom panel --><ADDRESS><FONT SIZE=-1>©1999,2000 Mark Pearson
<A HREF="mailto:m.pearson@ukonline.co.uk">m.pearson@ukonline.co.uk</A> April 30, 2000</ADDRESS><BR></td></tr><!-- end bottom panel --></table></BODY></HTML>
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