Mixtuur’s project at the New Apostolic Church covers multiple church buildings. The New Apostolic Church in Wolfenbüttel also originally featured a hybrid organ, with pipework produced by organ builder W. Sauer Orgelbau. The commission for Mixtuur was again to replace the electronics with the latest Hauptwerk™-based technologies. Mixtuur Orgels also supplied unique sample sets that fit in seamlessly with the sound of the pipes.