Answer:
He pioneered the use of electric piano and synthesizers in jazz, is the right answer.
Step-by-step explanation:
Josef Erich Zawinul was a jazz musician and keyboardist from Austria. Initially coming to fame with Cannonball Adderley, a saxophonist, Zawinul proceeded on to perform with Miles Davis and to grow one of the producers of jazz merging, a vocal genre that mixed rock with jazz. He explored the adoption of electric piano and synthesizer.