Resumen de Building a Comprehensive Sheet MusicLibrary Application

Klaus Rettinghaus, Alexander Pacha

• Digital symbolic music scores offer many benefits compared to paper-based scores, such as a flexible dynamiclayout that allows adjustments of size and style, intelligent navigation features, automatic page-turning, onthe-fly modifications of the score including transposition into a different key, and rule-based annotations thatcan save hours of manual work by automatically highlighting relevant aspects in the score. However, most musicians still rely on paper because they don’t have access to a digital version of their sheet music, or their digitalsolution does not provide a satisfying experience. To bring digital scores to millions of musicians, we at Enoteare building a mobile application that offers a comprehensive digital library of sheet music. These scores areobtained by a large-scale Optical Music Recognition process, combined with metadata collection and curation.Our material is stored in the MEI format and we rely on Verovio as a central component of our app to present scores and parts dynamically on mobile devices. This combination of the expressiveness of MEI with thebeautiful engraving of Verovio allows us to create a flexible, mobile solution that we believe to be a powerfuland true alternative to paper scores with practical features like smart annotations or instant transpositions.We also invest heavily into the open-source development of Verovio to make it the gold standard for renderingbeautiful digital sheet music