45 lines
1.8 KiB
HTML
45 lines
1.8 KiB
HTML
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<p>A typical <dfn>MIDI track header</dfn> looks like this:</p>
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<figure>
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<img src="/images/typical-midi-track-controls.png" alt="A MIDI track header">
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<figcaption>
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A MIDI track header
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</figcaption>
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</figure>
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<p>
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To show the full set of MIDI track controls, the <a href="@@track-height">track height</a>
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must be increased beyond the default. MIDI tracks show only a few of the control elements
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when there is insufficient vertical space.
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</p>
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<p>
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A MIDI track has the same basic controls as an <a href="@@audio-track-controls">audio track</a>,
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with the addition of two extra elements:
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</p>
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<ol>
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<li>Some meters for the track's outputs (MIDI in <span style="color:red;">red</span>,
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Audio in <span style="color:green;">green</span>)</li>
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<li>The <dfn>Scroomer</dfn>, a zoom and scroll controller for the midi notes range.</li>
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</ol>
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<p>
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The Scroomer performs a couple of functions:
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</p>
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<ul>
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<li>The scrollbar controls the range of pitches that are visible on the
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track, as visualized by the piano keyboard. Drag the body of the scrollbar up
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and down to display higher or lower pitches.</li>
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<li>Drag the scrollbar handles to zooms in and out and increase and decrease the
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range of visible pitches.</li>
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<li>clicking on the piano plays the corresponding MIDI note for reference.</li>
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</ul>
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<p>
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A MIDI track's data may span any number of the 16 available MIDI channels, and sometimes it is
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useful to view only a subset of those channels; different instruments may,
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for example, be put on different channels. In the context menu (<kbd class="mouse">right</kbd> click),
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the <kbd class="menu">Channel Selector</kbd> allows to control the <dfn>MIDI channel</dfn>(s)
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that will be visible in the editor.
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</p>
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<p>
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To edit the contents of a MIDI track see <a href="@@edit-midi">MIDI Editing</a>.
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</p>
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