Steady Increase of Membership
From the foundation in 1968, PTNA membership is on steady increase. As of December 2014, 14883 affiliate members involve in the activities of PTNA.
Participants of PTNA major events
PTNA Piano Competition (1977-) and PTNA Piano STEP (1997-) are the two major events of PTNA. STEP has spread out rapidly in the last 15 years, and now it exceeds the number of the contestants in the competition. In 2010, PTNA started networking local piano competitions across Japan. In 2014, a total of 89776 participants joined those events.