Mood Organ is Seattle multi-instrumentalist Timm Mason. Themed around an obsessive reading of Cold War history, Mood Organ melds dance rhythms with film and videogame soundtrack motifs. Timm has been performing in Seattle since 2004, and is a member of Master Musicians of Bukkake, Midday Veil, TJ MAX, and the MOTOR Collective. He curates the cassette label Masters Chemical Society, issuing experimental music by local and international artists. He has contributed to recordings by Eyvind Kang & Jessika Kenney, DRKWAV, Jessica Sligter, Wolves in the Throne Room, Splashgirl, and Akron/Family.