Traditionally the piano has a page turner because both his hands are in play at any given time. String players don't have page turners.
In one of the videos I posted last night of the Mendelssohn trio, pianist Adam Neiman doesn't employ a page turner but displays the score on his Tablet instead.
161 posted on 07/05/2014 7:15:08 PM PDT by Publius
("Who is John Galt?" by Billthedrill and Publius now available at Amazon.)