The music calendar at PUC is sprinkled generously with events from jazz band concerts to senior recitals; but this year a special concert series has joined the line-up. It’s the Rieger Organ Concert Series, featuring ten guest concert organists of impressive caliber who come from as close as Southern California and as far as Germany. These top-notch musicians will perform on the PUC Church Rieger organ, one of the largest mechanical organs in the western states. The organ was crafted by Rieger Orgelbau in Austria, then shipped to California and reassembled in the Angwin church in 1981. Since then, many famous organists have plied its 85 ranks and 58 stops, filling the building with grand expanses of sound.