Duke Xian of Qi Duke Xian of Qi Duke Xian of Qi (; died 851 BC) was from 859 to 851 BC the seventh recorded ruler of the State of Qi during the Western Zhou Dynasty of ancient China. His personal name was Lü Shan (呂山), ancestral name Jiang (姜), and Duke Xian was his posthumous title. Duke Xian was a younger son of Duke Gui of Qi. When Duke Gui died, Duke Xian's older brother Buchen ascended the throne, to be posthumously known as Duke Ai of Qi. Duke Ai had a dispute with the marquis of Qi's neighbouring state Ji (紀). King
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