Duke Kang of Qi Duke Kang of Qi Duke Kang of Qi (; died 379 BC) was from 404 to 386 BC the titular ruler of the State of Qi during the early Warring States period of ancient China. His personal name was Lü Dai (呂貸), ancestral name Jiang (姜), and Duke Kang was his posthumous title. He was the final Qi ruler from the House of Jiang. Duke Kang succeeded his father, Duke Xuan of Qi, who died in 405 BC after 51 years of reign as titular ruler of Qi. Since Tian Heng killed Duke Xuan's uncle Duke Jian of Qi in
What Love Is Made Of three minutes and fifty-five seconds (3:55), "What Love Is Made Of" is an uptempo dance and house track that has been described as "rave-y" and "trance-y". Its instrumentation contains the sounds of pianos and synthesizers. Jordan Sargent of "Spin" observed that it continued the musical style first introduced in Katy's 2012 extended play (EP), "Danger EP", which was "straight-forward house". Idolator's Sam Lansky compared her performance in the song to recording artist Siobhán Donaghy. Critical response to "What Love Is Made Of" was generally positive: most critics noted Katy's vocal performance and commended its sound. Siân Rowe from "NME" was