A federal judge has rejected a request that she recuse herself from a high-profile litigation involving the music industry on the ground that her attorney husband and his firm have represented some of the defendants in other matters.

Lead attorneys for plaintiffs in the case expressed concern that because Southern District of New York Judge Loretta A. Preska’s husband, Thomas J. Kavaler, and his firm, Cahill Gordon & Reindel, represented several of the music company defendants in other litigation, she might be inclined to tilt toward the defendants.