They may not happen with the greatest frequency but one thing is assured upon tracking down a new Robag Wruhme release — you will be entertained. The veteran producer has a knack of injecting his tracks with a certain buoyancy and mirth that few others manage to conjure with each successive release. The latest on Vakant, “Abusus Adde,” finds Mr. Schablitzki in top maniacal form, with three cuts that not only prove to be weighty peak time contenders but also remind you dance music is meant to be fun.