"dude 1: "dude after the mall lets hit up some cats and jam in the 270 commenwealth ensemble room"  dude 2: "ya man
"the hippest spot on berklee college of music's campus
""dude 1: "dude after the mall lets hit up some cats and jam in the 270 commenwealth ensemble room"  dude 2: "ya man" What is the definition of "270 commenwealth"?