Emperor Wenxuan of Northern Qi winter 549, with rival Liang Dynasty under internal turmoil after the rebellion of Hou Jing (a former Eastern Wei general who had defected to Liang in 547), Gao Yang sent Peng Le to attack the Liang border provinces, taking over the region between the Huai River and Yangtze River with ease. In spring 550, Gao Yang had Emperor Xiaojing convey on him the greater title of Prince of Qi Commandery. Two months later, his title was made the even greater title of Prince of Qi. In summer 550, under advice from the officials Gao Dezheng (高德政), Xu Zhicai (徐之才), and
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