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<refentry id="schedule">
<indexterm id="IndexSchedule"><primary>schedule</primary></indexterm>
<refentryinfo><title>Instrument Control:Invocation</title></refentryinfo>
<refmeta>
<refentrytitle>schedule</refentrytitle>
</refmeta>
<refnamediv>
<refname>schedule</refname>
<refpurpose>
Adds a new score event.
</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<para>
Adds a new score event.
</para>
</refsect1>
<refsect1>
<title>Syntax</title>
<synopsis><command>schedule</command> insnum, iwhen, idur [, ip4] [, ip5] [...]</synopsis>
<synopsis><command>schedule</command> "insname", iwhen, idur [, ip4] [, ip5] [...]</synopsis>
</refsect1>
<refsect1>
<title>Initialization</title>
<para>
<emphasis>insnum</emphasis> -- instrument number. Equivalent to p1 in a score <link linkend="i"><citetitle>i statement</citetitle></link>. <emphasis>insnum</emphasis> must be a number greater than the number of the calling instrument.
</para>
<para>
<emphasis><quote>insname</quote></emphasis> -- A string (in double-quotes) representing a named instrument.
</para>
<para>
<emphasis>iwhen</emphasis> -- start time of the new event. Equivalent to p2 in a score <link linkend="i"><citetitle>i statement</citetitle></link>. <emphasis>iwhen</emphasis> must be nonnegative. If <emphasis>iwhen</emphasis> is zero, <emphasis>insum</emphasis> must be greater than or equal to the p1 of the current instrument.
</para>
<para>
<emphasis>idur</emphasis> -- duration of event. Equivalent to p3 in a score <link linkend="i"><citetitle>i statement</citetitle></link>.
</para>
<para>
<emphasis>ip4, ip5, ...</emphasis> -- Equivalent to p4, p5, etc., in a score <link linkend="i"><citetitle>i statement</citetitle></link>.
</para>
</refsect1>
<refsect1>
<title>Performance</title>
<para>
<emphasis>schedule</emphasis> adds a new score event. The arguments, including options, are the same as in a score. The <emphasis>iwhen</emphasis> time (p2) is measured from the time of this event.
</para>
<para>
If the duration is zero or negative the new event is of MIDI type, and inherits the release sub-event from the scheduling instruction.
</para>
<note>
<para> Note that the <emphasis>schedule</emphasis> opcode can't accept string p-fields. If you need to pass strings when instantiating an instrument, use the <link linkend="scoreline"><citetitle>scoreline</citetitle></link> or <link linkend="scoreline_i"><citetitle>scoreline_i</citetitle></link> opcode.</para>
</note>
</refsect1>
<refsect1>
<title>Examples</title>
<para>
Here is an example of the schedule opcode. It uses the file <ulink url="examples/schedule.csd"><citetitle>schedule.csd</citetitle></ulink>.
<example>
<title>Example of the schedule opcode.</title>
<para>See the sections <link linkend="UsingRealTime"><citetitle>Real-time Audio</citetitle></link> and <link linkend="CommandFlags"><citetitle>Command Line Flags</citetitle></link> for more information on using command line flags.</para>
<xi:include href="examples-xml/schedule.csd.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
</example>
</para>
</refsect1>
<refsect1>
<title>See Also</title>
<para>
<link linkend="schedwhen"><citetitle>schedwhen</citetitle></link>
</para>
</refsect1>
<refsect1>
<title>See also</title>
<para><link linkend="event"><citetitle>event</citetitle></link>,
<link linkend="event_i"><citetitle>event_i</citetitle></link>,
<link linkend="schedwhen"><citetitle>schedwhen</citetitle></link>,
<link linkend="schedkwhen"><citetitle>schedkwhen</citetitle></link>,
<link linkend="schedkwhennamed"><citetitle>schedkwhennamed</citetitle></link>,
<link linkend="scoreline"><citetitle>scoreline</citetitle></link>,
<link linkend="scoreline_i"><citetitle>scoreline_i</citetitle></link></para>
<para> More information on this opcode: <ulink url="http://www.csounds.com/journal/issue15/phrase_loops.html"><citetitle>http://www.csounds.com/journal/issue15/phrase_loops.html</citetitle></ulink> , written by Jim Aikin </para>
</refsect1>
<refsect1>
<title>Credits</title>
<para>
<simplelist>
<member>Author: &namejohn;</member>
<member>University of Bath/Codemist Ltd.</member>
<member>Bath, UK</member>
<member>November 1998</member>
</simplelist>
</para>
<para>Example written by &namekevin;.</para>
<para>New in Csound version 3.491</para>
<para>Based on work by &namegabriel;</para>
<para>Thanks goes to David Gladstein, for clarifying the <emphasis>iwhen</emphasis> parameter.</para>
</refsect1>
</refentry>
|
