Request from Brazil to add score to my old tutorial. Know the audio is bad! But that is immaterial :) Made several slow tutorials for this piece. Links on webpage: https://sites.google.com/site/pianoandmathtutorials/chopin-s-opus-28-preludes One of Chopin's most popular pieces, Prelude in E Minor, Op. 28, No. 4, (called Suffocation) is marked "largo" and was played at Chopin's funeral. 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