Pepperland celebrates the semicentennial of Sgt. Pepper's Lonely Hearts Club Band. Clocking in at just under an hour, its kaleidoscopic color palette draws direct inspiration from the "tangerine trees and marmalade skies" psychedelizing The Beatles' 1967 record. The dance pays homage to the Fab Four and the Summer of Love with Elizabeth Kurtzman's mod-meets-flower-power costumes, Nick Kolin's trippy lighting design and an original Ethan Iverson score that creatively reimagines six songs on the record. Pepperland is its own pop sensation…