Robert L. Sipe, 83, died May 24 in Dallas, Texas, after a long illness. He was a veteran Dallas organbuilder who over 60 years produced new and rebuilt instruments across the United States. Following pioneering 1950s United States installations by Beckerath and Flentrop, Sipe was the first Texas builder after Otto Hofmann to wholeheartedly embrace neo-Baroque principles of mechanical action, slider windchests, low wind pressures, freestanding encasement, and lean and brilliant sonorities.