Optiganally Yours began as a fascination with the Optigan, a keyboard manufactured in the early and mid-'70s by Mattel, and grew into a long-lasting showcase for Pea Hix and Rob Crow's whimsical creativity. The duo takes the Optigan's murky, faraway sound -- which comes from the lo-fi loops encoded on the celluloid discs it plays -- in directions that range from heartfelt to ironic and from nostalgic to experimental; they're equally comfortable paying homage to Philip Glass and the Shaggs. With every release, the duo broadened the project's scope: 1997's Spotlight On... fell s...