American Organ Institute (2017) Trinity Lutheran Church Norman, OK GREAT 8' Diapason 8' Melodia 4' Principal 2' Super Octave SWELL 8' Violin Diapason 8' Salicional 8' Stopped Diapason 4' Flute PEDAL 16' Bourdon Tremolo COUPLERS Swell to Great 8' Swell to Great 4' Great to Pedal 8' Swell to Pedal 8'View Full Instrument Details