Real-time convolution reverb, "true-stereo + multi channel", aplied to a dry organ.
Software: XP64, Sonar 7 (Hauptwerke as plug-in), Voxengo Pristine Space.
IR set: Zwole church, omni A-B; independent IRs for each organ division in true-stereo setup (2x4 IRs => 4 Pristine Space instances in Sonar 7). Wet level: -12 dB.