Simplify the following text for a Grade 8 native English-speaking person.
Original: Early after his arrival , he bumped into Sonny Greer , who was by then the drummer for the Washingtonians , Duke Ellington 's early band .
Simplified: Soon after he went to Harlem , he met Sonny Greer again , who was now the drummer for the Washingtonians , Duke Ellington 's early band .