Simplify the following text for a Grade 6 native English-speaking person.
Original: Tony Tabac played drums that night after joining the band two days earlier . Mason was soon made the band 's manager and Tabac was replaced on drums in June 1977 by Steve Brotherdale , who also played in the punk band Panik .
Simplified: In May of 1977 , the band 's name was changed to Warsaw and Mason was replaced on drums by Tony Tabac .