Reports
Report 1 · October 6, 2026 · 2,022 pianists, 1.27 million notes
The hardest bars in popular piano pieces
In the 50 most-played pieces on MasterPiano, the hardest bar had a median 1.5 times the error rate of the rest of the same piece. Leaps, and bars where a repeated passage changes, stand out.
Read the report
How we handle the data
Reports use only aggregated results: no names, no accounts and nothing about any one person’s playing. Every figure needs at least 30 different players behind it (the first report raised that to 50), only public pieces are included, and the MasterPiano team’s own accounts are left out.
You are welcome to quote the findings, embed the charts and download the tables. Please credit MasterPiano Research with a link to the report.