Complex sentence: It has been compared by many fans to Pink Floyd's Wish You Were Here because of their similar structure; both albums have extended pieces at the beginning and end, and make up two halves of a single song carrying the name of the album.
Split into simpler sentences: It has been compared by many fans to Pink Floyd's Wish You Were Here because of their similar structure; both albums have extended pieces at the beginning and end. In both albums, these tracks make up both halves of a single song carrying the name of the album.