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<h2>
<span class="refentrytitle">massign</span>
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<p>massign —
Assigns a MIDI channel number to a Csound instrument.
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<div class="refsect1" title="Description">
<a id="id3010703"></a>
<h2>Description</h2>
<p>
Assigns a MIDI channel number to a Csound instrument.
</p>
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<div class="refsect1" title="Syntax">
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<h2>Syntax</h2>
<pre class="synopsis"><span class="command"><strong>massign</strong></span> ichnl, insnum[, ireset]</pre>
<pre class="synopsis"><span class="command"><strong>massign</strong></span> ichnl, "insname"[, ireset]</pre>
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<div class="refsect1" title="Initialization">
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<h2>Initialization</h2>
<p>
<span class="emphasis"><em>ichnl</em></span> -- MIDI channel number (1-16).
</p>
<p>
<span class="emphasis"><em>insnum</em></span> -- Csound orchestra instrument number.
If zero or negative, the channel is muted (i.e. it doesn't trigger a csound instrument, though information will still be received by opcodes like <a class="link" href="midiin.html" title="midiin"><em class="citetitle">midiin</em></a>).
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<p>
<span class="emphasis"><em><span class="quote">“<span class="quote">insname</span>”</span></em></span> -- A string (in double-quotes) representing a named instrument.
</p>
<p>
<span class="emphasis"><em>ireset</em></span> -- If non-zero resets the
controllers; default is to reset.
</p>
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<div class="refsect1" title="Performance">
<a id="id3011349"></a>
<h2>Performance</h2>
<p>
Assigns a MIDI channel number to a Csound instrument. Also useful to make sure a certain instrument (if its number is from 1 to 16) will not be triggered by midi noteon messages (if using something <a class="link" href="midiin.html" title="midiin"><em class="citetitle">midiin</em></a> to interpret midi information). In this case set <span class="emphasis"><em>insnum</em></span> to 0 or a negative number.
</p>
<p>
If <span class="emphasis"><em>ichan</em></span> is set to 0, the value of <span class="emphasis"><em>insnum</em></span> is used for all channels. This way you can route all MIDI channels to a single Csound instrument. You can also disable triggering of instruments from MIDI note events from all channels with the following line:
</p>
<pre class="programlisting">massign 0,0</pre>
<p>
This can be useful if you are doing all MIDI evaluation within Csound with an always on instrument(e.g. using <a class="link" href="midiin.html" title="midiin"><em class="citetitle">midiin</em></a> and <a class="link" href="turnon.html" title="turnon"><em class="citetitle">turnon</em></a>) to avoid doubling the instrument when a note is played.
</p>
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<div class="refsect1" title="See Also">
<a id="id3011418"></a>
<h2>See Also</h2>
<p>
<a class="link" href="ctrlinit.html" title="ctrlinit"><em class="citetitle">ctrlinit</em></a>
</p>
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<div class="refsect1" title="Credits">
<a id="id3011436"></a>
<h2>Credits</h2>
<p>
</p>
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<td>Author: Barry L. Vercoe - Mike Berry</td>
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<td>MIT, Cambridge, Mass.</td>
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<p>
</p>
<p>New in Csound version 3.47</p>
<p><span class="emphasis"><em>ireset</em></span> parameter new in Csound5</p>
<p>Thanks goes to Rasmus Ekman for pointing out the correct MIDI channel range.</p>
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