With Vol. 15 our comprehensive project featuring organ works of the Northern German Baroque on SACD is now complete. On the last release Friedhelm Flamme dedicates himself to the complete free organ works, that is, to the complete fugues and preludes, of Heinrich Scheidemann, a composer regarded as one of the cofounders of the Northern German organ school.. Scheidemann’s activity and influence on other organists and choirmasters brought him great respect in Hamburg’s music world, and he is regarded as one of the most significant composers of organ works from the early seventeenth century. Here we would like to thank our interpreter Friedhelm Flamme for his renderings of Northern German marvels of organ sound. His recordings demonstrate how genuine technique and virtuosity can be combined with intellectual probing to produce sensational results. The SACD recordings mean that the acoustic spaces of the selected historic churches form an integral part of the performances.