The Argentine native Gustavo sat on a concrete bench, banging on his drum in Dolores Park with gusto. “I cannot speak English [very well], but I can communicate with music,” he said as he played an afro-Caribbean style of drumming that he learned at the Community Music Center on 21st and Capp St. Gustavo, who moved to San Francisco in 2000 and currently cleans houses and lives with a friend in Bernal Heights, said this style of was new to him and part of the neighborhood’s past.