It took almost a decade for Sneed to take the local music seriously. His interest in funk carioca grew as he befriended an increasing number of young locals through the non-profit group Two Brothers Foundation that he co-founded with his friend. After living on and off in Rocinha as a community activist in the 1990s, Sneed was determined to go back to the area in the early 2000s to conduct fieldwork to research the Brazilian underground funk.
His decades of passion, research and first-hand experience of funk carioca led him to write a book about the music. "Machine Gun Voices: Favelas and Utopia in Brazilian Gangster Funk" was released by SNU Press earlier this month.