She recorded the video on her phone in one take. No edits.
It can be thin, causing "bleed-through" where you see the notes from the back side, and it may curl or tear with frequent use. Cardstock (60# to 80#): pdfcoffee sheet music
Nocturne in C-sharp minor, Op. posth. Source: Hand-corrected proof, belonging to K. Wolicka. Annotations: Contains composer's final revisions, made in pencil on his deathbed, March 1849. Never published. Fate: Destroyed, Warsaw Uprising, 1944. She recorded the video on her phone in one take
The library is extensive and multilingual, often containing niche arrangements that might be hard to find elsewhere. Op. posth. Source: Hand-corrected proof