Harmonic 33 oddly piques nostalgia for the mid-‘90s retro revival of ‘60s “exotica.” On this ode to broadcast sound libraries, hip-hop producers Mark Pritchard and Dave Brinkworth revamp the atomic age clichés that sold romance, spectacular death, and Martian existence in movies, sitcoms, and radio serials. However, they eschew the sampler in favor of concocting everything from scratch. Their devotion is amazing-each melodramatic harpsichord melody and Moog doodling is indistinguishable from the LPs that clutter Goodwill thrift shops. Yet the album jumps between funeral wakes and UFO dogfights so much that your guests will mistakenly blame the martinis for their upset stomachs.