Hi All,  A customer in Argentina has a Steck Themodist with an odd
trackerbar.  It has some indentations in the center section that
I've never seen before.  Does anyone know what they are all about?

Musically,

John A. Tuttle

 [ Are they slots for a roll tracking system?  See the photo
 [ at the MMD Pictures site, http://mmd.foxtail.co/Pictures/
 [ -- Robbie