He defined the hip-house phenomenon in 1989 with "Turn Up the Bass," but Tyree Cooper proved to be an excellent producer throughout house music's first decade, from the mid-'80s to the mid-'90s. He began DJing on Chicago's south side in 1983 and recorded his first single ("I Fear the Night") three years later, for the seminal house label DJ International. In 1987, Cooper detoured from straightahead Chicago house to acid on the club smash "Acid Over." His next single showcased yet another change of...