Dear Jonathan and Waltzer,
thank you very much for your answer on my question!!!
Greetz,
Petra

Contra Body Movement Position is a position of the feet, whereby one foot is placed along or across the track of the other.

When you see the description "forward in CBMP", it means that the moving foot should be placed directly on the track of the standing foot. When you see "forward and across in CBMP", that's your cue that the moving foot should go across.

This position is most often associated with promenade and outside partner positions, but you'll occasionally see it elsewhere as well. Tango uses CBMP on certain forward and backward walks, even in closed position.

For an illustration of the basic directional movements including CBMP, see the following page:

www.ballroomdancers.com/Learning_Center/
Technique/Directional_Movements/

Regards,
Jonathan Atkinson
www.ballroomdancers.com

CBMP - Contra Body Movement Position.