He was inspired upon hearing Kanye West's 2010 album, My Beautiful Dark Twisted Fantasy, realizing the potential of combining classical music with modern pop and hip hop.
[2] Feigenbaum began receiving attention in 2016, co-creating and arranging music for a live orchestra event called "Yeethoven", a project that combines and compares the works of Kanye West and Beethoven.
Impressed by the work, Dean invited Feigenbaum to help produce for several Kanye West projects in 2018, including Nas' Nasir and Teyana Taylor's The Album.
[9] His fourth project, which he dubbed his "debut album", was released independently in 2022 and is titled WDYWTBWYGU (an acronym of What Do You Want to Be When You Grow Up), and features KayCyy, Ant Clemons, Mr. Hudson, 070 Shake, among others.
At the end of the year, he released the debut album from Isomonstrosity, a collaborative group with Ellen Reid and Yuga Cohler, performed by International Contemporary Ensemble then chopped and rearranged with vocals added by artists including Danny Brown, Kacy Hill, and Empress Of.