Just listened to it. If you’re referring to the guitar intro, even though I know they have multiple guitarists and doing real harmonies is their thing the intro sounds like it’s using some sort of “Harmonizer” on a single guitar at first. Yes the H9Max can do great pitch shifting harmonies. Although it’s best to have the guitar straight into the unit and not in the loop for pitch effects. Or more precisely not have distortion before the effect. The rest of the song sounds like lots of delay and other layered studio stuff. Delay and reverb and possible light chorus to thicken things up for the solos should work.