Merge with 72d767c5142df7fc6387215096321295fbaaa73d
Update doubleroll and annotsroll to support stageView
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<title>Piano Roll Tests</title>
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<h1>Piano Roll Tests</h1>
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<ul>
<li><a href="pianoroll_h.html">Horizontal Pianoroll</a></li>
<li><a href="pianoroll_v.html">Vertical Pianoroll</a></li>
<li><a href="annotsroll.html">AnnotsRoll</a></li>
<li><a href="annotstimeline.html">AnnotsTimeLine</a></li>
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