Hip-hop demands that we feel the bass in our face and take the beat to the street—but what do we do with the accordion? Let this congenial Parisian crew demonstrate. Over the course of the ‘00s, Java united the boombox and the squeezebox, forging a distinctly French strain of hip-hop that reinforced the spiritual connection between Bronx B-boys and Montmartre buskers, while weaving in elements of folk, funk, and jazz. Once you cruise through this overview of the group's career highlights, a hand-pumped harmonium will sound as natural with rap as scratched vinyl does.