Forum:Natural Tune with a Fusion Monster

I have a doubt about if is possible use Natural Tune with a Fusion monster because that:

"...use Natural Tune on Gaia Knight, the Force of Earth to turn it into a tuner monster. "

http://yugioh.wikia.com/wiki/Card_Tips:Shooting_Star_Dragon

"...If a "Fusion" ("Dragoness the Wicked Knight"), "Ritual" ("Hungry Burger"), or "Synchro" ("Naturia Leodrake") Monster has no effect, they are considered a "Monster without an effect", not a "Normal Monster". "

http://yugioh.wikia.com/wiki/Normal_Monster

which is correct? Thanks!