AI Pitch / User Pitch
When you have input all the MIDI and lyrics, and start the playback, AI will generate the pitch based on the singing style of the current AI voice —— AI pitch. You can also rewrite the pitch line —— User pitch.
Tools
Pitch Brush
Pitch brush is the basic tool for rewriting the pitch curve. (shortcut key [1])
When you select this tool, the piano roll will turn into the pitch edit mode, where you can see AI pitch as dark curve and user pitch as white curve.
With this tool, you can simply draw user pitch curve by mouse. (To vocal engineers, we recommend using a drawing tablet)
- Draw left click to draw user pitch.
- Hold right click to erase user pitch.
For pro tips about drawing pitch, please refer to 
How to fine-tune the pitch curve.
Pitch Anchor
If you are not used to draw by mouse, you can use this pitch anchor tool. Click on the pitch brush to open the drop down, where you can switch to the pitch anchor tool.
Double click to place the first anchor, then click to add the following anchors, right click to end this curve.
You can drag a selection box to select anchors, and move or delete them.
Fixed Brush
AI pitch is generated based on the AI voice, melody, and lyrics. Any changes to these elements will result in the regeneration of AI pitch. AI generates AI pitch piece by piece, even you just change one lyric in a piece, all AI pitch in this piece will be regenerated. You can use this tool to lock certain parts of the AI pitch as user pitch to avoid unexpected result from the regeneration. (shortcut key [2])
Pitch Eraser
You can use the pitch eraser tool to erase any user pitch including pitch anchors. (shortcut key [3])
Vibrato
With this tool, you can add a vibrato on a note. (shortcut key [4])
To create a vibrato, just simply drag on a note from right to left. Before releasing your mouse, drag horizontally to adjust the length, drag vertically to adjust the amplitude (how big the vibrato is).
After releasing, you can see the handles of all parameters:
- Amplitude - drag the square at the top left corner vertically to modify
- Phase - drag the handle at the left bottom corner horizontally to modify
- Frequency - drag the handle at the right bottom corner horizontally to modify
- Envelopes (attack and release) - drag the to circles in the middle to control the envelopes
Under this tool, you can drag a selection box to select one to more vibratos, then you can delete them.
Tip: Usually, for a longer note, the AI pitch already has a vibrato. In this case, if you add an extra vibrato on it, the final pitch would be in chaos. You can draw a flat user pitch first, then add a vibrato on it to make the result more natural.
Modulation
With this tool, you can control the dynamic range of pitch curve. (shortcut key [5])
Drag on a note vertically to control the dynamic.
- Drag down to make the pitch more flat
- Drag up for the opposite
Voiceless Pitch
Dash pitch curve is voiceless pitch, this means the sound of this part is voiceless (breathy voice or aspirated sound).
When you are drawing pitch curve on voiceless consonants or blank area without any AI pitch, you will draw voiceless pitch by default.
- To draw voiceless pitch, hold [Alt / Option] while drawing.
- To force drawing voice pitch anywhere, hold [Shift] + [Alt / Option] while drawing.