Update Announcement of "MUSYNX"

First of all, I wish you all a happy Halloween in advance!
The following is the content of this update:

1.New Song
Update four songs: "Witch" and "Spooky Melodic Night" easy and hard difficulty.



2.Inferno difficulty

Update the Hell Difficulty of the sixteen songs for everyone to challenge. They are:
8bit Adventurer
8bit Voyager
8th Planet
Africa
Alice in Misanthrope -厭世アリス-
Aurora
Burn
Celestial Axes
Chronomia
CO5M1C R4ILR0AD
Data err0r
Doppelganger
Future Dive
ニニ
Upshift
Spooky Melodic Night