Musopen ist ein Non-Profit-Unternehmen, das sich zum Ziel gesetzt hat, freie klassische Musik und Bildungsmaterialien kostenlos online verfügbar zu machen (via The Scout Reporter Vol. 21, No. 2):
«Musopen is a non-profit intent on providing classical music resources and educational materials online. On the site, readers will find recordings, sheet music, and even textbooks free of charge. One may click either Music Catalog, Sheet Music, or Music Education to begin scouting the site. While music education leaves something to be desired (the site promises to add more resources soon), the music catalog and sheet music sections are much more developed. The music catalog can be searched by composer, performer, instrument, period, and form. For instance, clicking on Claude Debussy pulls up a brief biography plus several dozen recordings that are available for listening and download. Likewise, clicking on Sheet Music pulls up hundreds of composers with at least one piece of free sheet music available for each.»