In the context of the entry level portable keybords, the quantize feature does not actually change the note timing. Depending on the song data, the score can be made more readable by adjusting the visual timing of the notes.
This quantize feature determines the minimum timing resolution used in the score display. For example, if the song contains only quarter notes and eighth notes in the song, you should set this value to “eighth note”. Any notes or rests shorter than this value will not be shown in the score.
Do you need an additional help?