TECHNICAL ECSTASYBlack Sabbath: Ozzy Osbourne (vocals); Tony Iommi (guitar); Geezer Butler (bass); Bill Ward (drums, background vocals). Additional personnel: Gerald Woodruffe (keyboards). Recorded at Criteria Studios, Miami, Florida. By the mid '70s, a number of problems were threatening to break up the original line up of Black Sabbath. The stress brought on by lengthy touring, drug use, and alcoholism had begun to dilute the band's original, influential heavy