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The band are called Goblin, not Goblins. They didn't do any Argento soundtracks between Tenebrae (1982) and Sleepless (2001), and they haven't done the soundtrack for this new one either.
It's Claudio Simonetti (a founding member of Goblin) who's done the Mother of Tears soundtrack. He also did music for Phenomena (1986), Opera (1987), The Card Player (2004), and Argento's Masters of Horror episodes "Jenifer"(2005) and "Pelts"(2006).