When I think of adjectives to describe acid (the music), words spring to mind that could just as easily describe acid (the solution): “Harsh,” “coruscating” or “abrasive,” all words I associate with the fierce 303s of Phuture, Sleezy D’s “I’ve Lost Control,” Mike Ink, Dr Walker, Unit Mobeius or more recently, Legowelt and Bunker Records. Rare is the track written with a 303 drum-machine that merits the descriptive tag “beautiful” or “graceful.” Marshall Jefferson and Larry Heard are among the talented few who have achieved this (the latter with the peerless mega-hit “Sun Can’’t Compare” a couple years ago), and now Tevo Howard joins their illustrious company with his latest doublepack Crystal Republic on the Rush Hour sub-label Hour House Is Your Rush.