Piano roll shows the content of the midi clip that you selected on the arrangement view.
When you place the time-marker-line on a clip, the clip viewer will show this clip.
When you create a selection on arrangement view, the clip view will show the corresponding content of the specific selection range.
To collapse the clip viewer, click the button at the right top corner or use shortcut [Shift] + [Tab].
To adjust the size of clip viewer, drag the top edge vertically.
Tool bar
Tool bar is located at the top of piano roll. From left to right, there are clip name, note language selector, note tools, pitch tools, and viewer size controls.
- Clip name: double click to change name.
- Note language:
Singing languages - Note tools:
Edit notes - Pitch tools: Edit pitch
- Viewer size control:
- Click “Max” to adjust the piano roll to the largest size.
- Click “Close” to hide piano roll. Shortcut [Shift] + [Tab].
- Place mouse at the top edge of piano roll, you can adjust the size by dragging.
Zoom and move view
Drag horizontally on the time ruler to pan view.
Drag vertically on the time ruler to zoom horizontally. You can also hold [Ctrl / Cmd] and scroll mouse wheel to zoom.
Drag with the middle button of your mouse on the grid to move view.
Drag vertically on the black area of piano keyboard to scroll view vertically.
Drag horizontally to zoom vertically.
- For mac: you can also hold [Opt] and scroll mouse wheel to zoom.
- For win: you can also hold [Ctrl] + [Shift] and scroll mouse wheel to zoom.
Scale and chord background
Scale
- Click on the scale button to turn on/off the background.
- Click the little triangle at right side to show the settings, where you can set up the scale and fold all notes out of this scale.
Chord
In the settings of background, you can switch to chord mode from the first drop down menu.
With chord background mode, it shows all notes under current chord with color. To learn about creating a chord progression, please refer to 
Chords.
Parameter tabs
Parameter tabs are located at the bottom of piano roll. You can open the parameter panel by clicking on one of these tags.
- [Breath] - add a breath note at the beginning of a line
- [Air / Falsetto / Tension / Energy] - modify the envelopes of AI emotion parameters
- [Formant] - modify the formant
To learn more about all parameters, please refer to Edit emotion parameters.