DPAD was conceived as a Dream Machine — the eponymous title of local artist Drew Arieta’s recent evolving installation at The Walker. The group — Dex Wolfe, Pat Keen, Anna Dolde & Dave Power — vacillates freely from grooves that nod to 70’s electric Miles Davis, to glitchy tape loops and harmonized horns a la 80’s Jon Hassell. The quartet taps into our collective autonomic system to create improvised sound tapestries that land somewhere between early proto-ambient music, new jazz, and the hypnosis of experimental electronic and techno musics.