[ Ref. 041015 MMD, Wurlitzer & Philipps Tracker Bar Hole Spacing ]

In addition, the Wurlitzer Organette Style W uses the same tracker bar
spacing (4 holes per cm) as the tracker bar for PM rolls, although the
actual scale is different.

Stephen Kent Goodman

 [ Sound files and a description of the Wurlitzer Organette are at
 [ http://mmd.foxtail.com/Sounds/WurW/index.html  -- Robbie