On this special day, Serious Music Alphen revisits its early days with "special events" that offered Dutch progressive rock bands a professional stage at Parkvilla. This event is a special mini-festival featuring no fewer than four Dutch progressive rock bands: Deflexion, The Ceres Phenomenon (formerly Timelock), Profuna Ocean, and Leap Day. With four performances of (well over) an hour each, it promises to be over four hours of enjoyment of modern and varied progressive rock from the Netherlands!