Thank you very much for your feedback Concerning "on-demand", this is how it works: It is a system for us to prioritize the mp3 accompaniments production and i

Thank you very much for your feedback Concerning "on-demand", this is how it works: It is a system for us to prioritize the mp3 accompaniments production and it is 100% free. When you find a work where the sheet music is available but for which we don't have the accompaniments ready yet, you can upvote this work by clicking the "thumb up" button. We produce the most upvoted works first. When we have pushed the accompaniment online, you receive an email. Of course, once the accompaniments has been produced, we make it available for every weezician.