Details: Noteflight is the "Google Docs of Music": cloud-based music notation check us out at

Founded in 2008 and headquartered in Boston, MA, Noteflight, LLC is dedicated to reinventing the way people create, share, and use written music. Noteflight allows users to edit, display, play back and share music notation in a web browser, on any device. Noteflight has an active online community of over 650,000 music enthusiasts and its site contains a corpus of musical scores to which anyone can publish their compositions. Noteflight serves music education instructors with its Noteflight Classroom product for K-12 and Noteflight Campus for Higher Education. Noteflight also licenses its technology to industry leaders to manage scalable cloud-based repositories of sheet music that can be delivered to any device with Noteflight Publishing Server.
Alumni note: Noteflight was one of the Mass Innovation Nights charter companies. Yes, Noteflight was part of the original MIN event held April 2009.