Jazz-tinged ballads have long been Joanna Wang's go-to, highlighted by her rich and soulful voice. The Taiwanese-American singer/songwriter grabbed attention quickly with her 2008 debut album, highlighted by such sparse, midtempo love songs as “Let's Start from Here.” Wang has explored a vast array of sounds since, as varied as lounge numbers and picopop. Yet she's at her strongest on slower tunes, including smoky jazz cuts (“You've Got a Friend”) and minimal acoustic-guitar creations (“Vincent”). The unifying element is her singing—husky but capable of high-note-centric choruses.