new(gridGraphic:FlxGraphic)
beatSeparator:FlxBackdrop
bottomLimit:FlxSprite
bottomSeparator:FlxSprite
conductorFollowerSpr:FlxSprite
gridBackDrop:FlxBackdrop
notesGroup:FlxTypedGroup<CharterNote> = new FlxTypedGroup<CharterNote>()
sectionSeparator:FlxBackdrop
strumLine:CharterStrumline
topLimit:FlxSprite
topSeparator:FlxSprite
waveformSprite:FlxSprite
updateSprites():Void