Behind The Black Power Goddess: Betty Davis' Early Demos Released

'Over the last 10 years, 1970s funk icon Betty Davis has enjoyed a renaissance of rediscovery. Her music has been lavishly reissued and anthologized, but for years the holy grail was a collection of songs she recorded for Columbia Records in the late '60s, several of which her then-husband, Miles Davis, helped to produce. For decades, no one could hear those songs — until now. The Columbia Years 1968-1969 captures an artist beginning to assert her own voice.' -- Oliver Wang for +NPR Music