manual/include/controlling-midi-range.html

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<p>
The visible note range in a MIDI track can be controlled in two
principle ways: the note scroomer, or the scroll wheel of your
mouse.
<p>
<h2 id="add-new-notes-using-the-mouse">Using the scroomer</h2>
<p>
The scroomer offers two kinds of control. You can "grab" it in the
middle and move it up or down - this adjusts the absolute note range
displayed up or down. Alternatively you can "grab" the top or bottom
handle of the scroomer, and move that up or down - this adjusts the
extent of the note range displayed.
<figure>
<img style="width:75%" src="/images/midi-scroomer.png" alt="MIDI scroomer">
<figcaption>MIDI scroomer</figcaption>
</figure>
<h2 id="add-new-notes-using-scroll">Using your scroll wheel</h2>
<p>
Several scroll operations can be used to control the visible note
range:
<li>In internal edit mode, with no notes selected, unmodified
scrolling will move the visible range up and down.</li>
<li><kbd class="mod1">scroll</kbd> will increase and decrease the
visible range (zoom out and in)</li>
<li><kbd class="mod13">scroll</kbd> will expand either the top or
bottom of the visible note range (depending on scroll
direction). Think of this as "show me higher pitches" or "show me
lower pitches".
</p>