To my knowledge no original tubing diagrams exist for Seeburg coin
pianos.  A Seeburg K plays an "A" roll.  A Seeburg KT plays the
Style "G" or "4X" roll since it has a xylophone or pipes as the extra
instrument with the addition of castanets, triangle, and tambourine.
Follow the tracker scale to tube one of these.

The latest instruments had a three-way volume control with that tubing
diagram shown in the Reblitz & Bowers "Treasures of Mechanical Music".
If someone has specific questions then please post them on the Digest.
I think the tracker scale is in the MMD Archives.

Don Teach

 [ See http://www.mmdigest.com/Gallery/Tech/seeburgL.htm  and
 [ http://www.mmdigest.com/Gallery/Tech/Scales/Aroll01.htm 
 [ http://www.mmdigest.com/Gallery/Tech/Scales/Groll01.htm 
 [ -- Robbie