What makes iv by Hiroyuki Sawano notable?

'iv' is significant for its innovative merging of electronic music and orchestral arrangements, solidifying Sawano's reputation in both anime and mainstream music cultures. The album features tracks that have been widely used in media, contributing to its popularity and critical acclaim within the anime community. By the release of 'iv' in January 2021, Hiroyuki Sawano had already established himself as a prominent composer known for his work on anime soundtracks and cinematic music. This album follows his previous works, showcasing a further evolution in his distinct blend of orchestral and electronic elements that he began to popularize through series like 'Attack on Titan' and 'Kill la Kill'.