Duke Xiang of Qi Duke Xiang of Qi Duke Xiang of Qi (; died 686 BC) was from 697 to 686 BC the fourteenth recorded ruler of the State of Qi, a major power during the Spring and Autumn period of ancient China. His personal name was Lü Zhu'er (呂諸兒), ancestral name Jiang (姜), and Duke Xiang was his posthumous title. Although under Duke Xiang the state of Qi conquered the neighbouring state of Ji, its traditional enemy, Duke Xiang is best known for his depravity, having had an incestuous relationship with his sister Wen Jiang and murdered his brother-in-law Duke Huan of Lu.
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