Piano Forum

I'm an early intermediate learner spending a few years on Bach with a terrific teacher who helps me learn the more elaborate of Bach's ornaments as needed.  I'm working on the B minor French Suite Allemande.  As I begin to listen to slower recordings of it, I think I hear that the pianist sometimes shortens the trill part of the longer ornaments.  My teacher says this is not uncommon, and OK.  We don't have time to listen together, so I wonder if anyone hears this, or knows anything about it, or has done this in their own playing.