Initially, singer-songwriter Chloe Bailey, who tours and records as Chlöe, was one half of the musical duo Chloe x Halle with her sister Halle Bailey. Last year, she embarked on a solo career and issued her solo debut, In Pieces. Her hushed vocals carry an intensity on tunes such as the percolating "Pray It Away" and "I Don't Mind." On tour in support of the album, she performs tonight at 7 at House of Blues.