With astonishing speed, female musicians in Brazil have in the past couple of years begun breaking into the male realm of samba circles, taking a seat at the table both literally and figuratively. Just a few years ago, the musicians playing in a samba circle jam session used to be almost all male. In 2018, though, a clutch of all-female samba groups have set out to change that, and in doing so, they have generated what could be a sea change for this beloved Brazilian musical genre.