@:optionaloptionalvocalsSuffix:Null<String>
@:optionaloptionalvisible:Null<Bool>
type:ChartStrumLineType
@:optionaloptionalstrumScale:Null<Float>
@:optionaloptionalstrumPos:Null<Array<Float>>
@:optionaloptionalstrumLinePos:Null<Float>
@:optionaloptionalscrollSpeed:Null<Float>
position:String
notes:Array<ChartNote>
characters:Array<String>