EmptyBars.org was created with a purpose to help musicians to study new musical pieces. Many musical teachers advise their students to learn compositions by splitting them into sections and then studying each section individually. (E.g. here or here.)
On this website, you can find musical compositions performed by excellent musicians and uploaded on YouTube. Each piece is split into sections, and each section is linked to a particular place in the sheet music for convenient studying.
You are welcome to contribute your works to the website. Please see Contribute for more details.