Question: What kind of sound did Kanye abandon a rap and hiphop one for with his fourth album?
Sentence: West's fourth studio album, 808s & Heartbreak (2008), marked an even more radical departure from his previous releases, largely abandoning rap and hip hop stylings in favor of a stark electropop sound composed of virtual synthesis, the Roland TR-808 drum machine, and explicitly auto-tuned vocal tracks.
Answer in sentence: yes