Filled to the brim with ambitious, orchestral arrangements and an army of instruments, it’s easy to forget that Heartland is the work of one musician. Owen Pallett, the man formerly known as Final Fantasy, builds his live violin-and-vocal setup into a serious wall of sound on his third full-length. Dense and detailed yet never overstuffed, Heartland thrives on nearly every track with a theatrical sense of melody and a keen ear for layering elements into stunning blasts of sound; even on the sleek pop of “Lewis Takes Action,” Pallett inserts surprising melodic twists and ornamentation into his compositions. Impressive in both scale and execution, Heartland succeeds not just due to Pallett’s sizable talents, but his belief in his even larger ambition.