premise: Spencer Chamberlain (born January 4, 1983) is an American musician, best known for being the current lead vocalist for the metalcore band Underoath. Before fronting Underoath, Chamberlain was the vocalist for the band This Runs Through in which his brother, Phil Chamberlain, was the drummer (who is also the drummer for To Speak of Wolves). He is currently the vocalist of Sleepwave.
hypothesis: Now his brother is in a different band
reason: Context states his brother is the dummer for "To Speak of Wolves" and then theres Chamberlain(main guy)-"He is currently the vocalist of Sleepwave" 2 different bands. The AI was confused because it knows the brothers were in a band but I said now his brother is in a different band, which according the the context is correct.