Requested in 2012. Level 4 to 5 (if presto). At tempo section @10:58 Jane, a retired university math teacher, started this volunteer project in April 2009. Positive feedback from wonderful viewers worldwide keeps her motivated. Jane is a strong advocate of reading music. She made unconventional sight-reading lessons that simplifies reading music. https://sites.google.com/site/pianoandmathtutorials/sight-reading-lessons Nice performance by then 9-yr old Pam Kijoran: https://youtu.be/ShTa_FTmXTo