The group delivers earnest and impassioned songs, as if pouring directly from the pages of Atkins' diary. Whether whispering sinisterly or really rocking it out, Atkins packs a big voice and a fresh sound, letting her words linger and her attitude show. The New Jersey-born singer and songwriter will often use a brief interlude within a song, changing the style to create an unexpected moment or emphasize her point.
The Black Sea aids in the changing moods and styles on Atkins' second full-length album, Mondo Amore. A condensed version of the players that contributed to the album, the Black Sea is Nicole's current touring band, consisting of Irina Yalkowsky, Jeremy Kay and Ezra Oaklan. Among the guest artists scattered throughout Mondo Amore, Jim James makes an appearance on the slow and dreamy song "War is Hell," using his thick vocals to create a ghostly accompaniment on an already haunting song. Mondo Amore is filled with ambitious layers of psychedelic rock and alternative country, showcasing Atkins' commanding range.