Day6’s Wonpil’s new solo EP, “Unpiltered,” marks a clear shift in his musical direction, as he experiments with sounds he had long wanted to try. His first solo EP, “Unpiltered” set to release at 6 p.m. Monday, marks his first solo release since 2022 LP “Pilmography.” While his previous work leaned more toward warmth and comfort, the new album reflects a broader and more experimental approach. Musically, “Unpiltered” marks a shift not only in tone, but in process. Wonpil said he has always liste