The attached .pdf is of measure 35 from the 'Rode' Variations, Op. 33, by Carl Czerny. I am entering the piece for a blind musician who is interested in performing them. I find that the mordents, some of you might call them otherwise, would be easier played do-re-do. I currently understand them to be played re-do-re-do.
So, is it more proper :
re-do-re-do or do-re-do ?
If you have any documentation on this, I would appreciate a synopsis.