Complex sentence: Musically, "Early Winter" is a "sleek, surging" soft rock and synthpop ballad, similar to Stefani's work with her band No Doubt; it is highly influenced by new wave music.
Split into simpler sentences: Musically, "Early Winter" is a "sleek, surging" soft rock and synthpop ballad. Similar to Stefani's work with her band No Doubt, it is highly influenced by new wave music.