Chris Jasper, who helped shape the sound of 1970s funk and soul music as a keyboardist, songwriter and producer for the Isley Brothers, working on Top 40 hits including “That Lady,” “Fight the Power” and “For the Love of You,

Singer Chris Jasper, who sang with the Isley Brothers and pursued a solo music career as well, died this week at age 73. He was recently diagnosed with cancer.

Chris Jasper, who helped bring the slow-grooving Isley Brothers into an upbeat electronic era, died Sunday at 73.