On the 13th of February, the commission of the new SIAP system was a fact. This was initiated with a large choir and the acoustics sounded in its full glory. With a modest 2.0 seconds preset (concert hall acoustics) up to 4.0 seconds (large church acoustics) exuberant experiments were carried out. One day later, all registers of the organ were pulled open and the large church acoustics (5.0 seconds reverberation time) was activated as this former church originally sounded, before being transformed into a theater. The system has two separate microphones for the organ that evenly receive the organ sound. Now that the acoustics are proper, this organ will be taken care of within the foreseeable future to put all mechanical and pneumatic parts back in order. In addition to all variable acoustics, routing and surround possibilities, the former church can also keep (original) organ concerts with the magisterial organ which is part of the church since 1948. Moreover, the theater can call itself unique because they are the only theater in the Netherlands with a play organ ( with accompanying acoustics!) and with 13 registers which can even be expanded. ‘All sorts of exciting combinations between organ music and performing arts are conceivable’, says city organist Jan van de Laar with a look into the future.