The W. Zimmer and Sons pipe organ was installed in the Spring of 1986, and dedicated by John. A. Behnke, Professor of Music at Concordia University Wisconsin, on April 27, 1986. It was designed by Dr. Paul Bunjes of Concordia University Chicago. Though it appears to be a three-manual instrument, it in fact is only two. The top manual was to be dedicated for a horizontal trumpet stop. There are 29 ranks of pipes on electro-pneumatic slider chests, with electric key action. The tonal design is of Northern Germanic baroque voicing. A six-bell Zimbelstern crowns the instrument with a rotating star in the center of the left tower.
PEDAL
Prestantbass 16' (facade)
Gedacktbass 16'
Offenbass 8' (extension of the 16')
Choralbass 4'
Rauschbass II (2-2/3')
Mixturbass II (1-1/3')
Holzposaune 16'
Schalmei 4'
CHOR (central manual)
Rohrgedackt 8'
Streichfloete 8'
Harfenprincipal 4'
Rausch 2-2/3'
Blockfloete 2'
Terz 1-3/5'
Scharf III (2/3')
Grob Dulzian 8'
Tremulant
GREAT (lower manual)
Prestant 8' (facade)
Barduen 8'
Octave 4'
Spitzgedackt 4'
Quartan II (2-2/3')
Mixtur III (1')
Trompete 8'
SOLO (Top manual)
Trompette en d'hors 8' (console preparation only)
COUPLERS
Great to Pedal 8' (reversible on thumb and toe)
Chor to Pedal 8' (reversible on thumb and toe)
Chor to Pedal 4'
Chor to Great 16'
Chor to Great 8' (reversible on thumb)
Zimbelstern (toe stud activation only)
32-level combination action memory
8 general pistons (thumb and toe stud)
4 divisional pistions per division
Full Organ (thumb and toe)
Crescendo pedal
Holy Trinity Lutheran Church
Growing Together in Christ