A quartet of recent releases from SoulMusic Records in association with Cherry Red turn the spotlight onto overlooked classics of 1980s R&B. Isaac Hayes’ Love Attack (1988) put the hot buttered soul man squarely into Big ’80s territory with thumping drum machines and gleaming synthesizers.  It was the Stax legend’s second album for Columbia Records and built on the sound of his label debut U-Turn on which he’d played almost every instrument on the record.  For Love Attack, he was joined by Bill Mueller on guitar, Gerald Jackson on synthesizer and Ronnie Garrett…