Mimi Stern-Wolfe, a pianist and conductor who specialized in music programs with a social justice or political theme, died June 21 at a care center in Manhattan. She was 84.

In the late 1970s, Ms. Stern-Wolfe, a fixture on the Lower East Side of Manhattan for most of her adult life, founded Downtown Music Productions, which in the years since has presented a wide range of programs, including performances by and for children, eclectic shows by the Downtown Chamber and Opera Players, and concerts featuring works by women and music of the Holocaust. Ms. Stern-Wolfe played and conducted at many of the performances, often leading from the piano bench.

Most of her productions were staged on the Lower East Side or in surrounding neighborhoods.