The grace type object

Type: String

Allowed values:

Value	Description
"make-time"	The run of grace notes delays the onset of the next non-grace event.
"steal-following"	The run of grace notes occupies a time interval starting at the expected onset of the next non-grace event, both delaying its onset and shortening its duration.
"steal-previous"	The run of grace notes occupies a time interval that ends before the expected onset of the next non-grace event, shortening the duration of the preceding non-grace event.