American bass guitarist, photographer and fanzine editor. Mitzi began publishing in the 1980s with the release of Drool Beat, published in Paducah, Kentucky. During this period she also contributed photographs and drawings to the Albuguerque, New Mexico zine Mutual Oblivion. Relocating to San Francisco, from 1985 to 1989, Waltz released Incoherent House, a zine devoted to the punk, post-punk, industrial and art damage bands of San Francisco. She also worked for Maximum Rocknroll.