There's some dispute over how Weather Report initially formed. According to Zawinul, it began when he and Shorter recruited another Miles Davis associate, the classically trained Czech-born bass player Miroslav Vitouš, who had previously played with each of them separately (as well as with Herbie Mann, Bob Brookmeyer, Stan Getz, and Chick Corea). According to Vitouš himself, it was he and Shorter who actually founded Weather Report, with Shorter bringing in Zawinul afterwards. Whichever story is true, it was those three musicians – all composers – who formed the initial core of the project.