Indiana University is creating a digital library system to store and provide access to music in multiple media and formats: audio, video, musical scores, computerized score notation. Variations2 is being created to support research and education in music.  Users will listen to sound recordings, display images of printed scores, view encoded score notation files, have notation translated into MIDI format for audio playback, use links to connect a music work in one format to a representation in a different format, and search the entire collection in all formats from a single search engine. Variations2 is an interdisciplinary project, with a project team comprised of faculty and graduate students representing various disciplines and specialties -- computer science, law, library and information science, music -- as well as librarians and information technologists specializing in digital libraries. The project integrates information systems design with research focused in the areas of usability, intellectual property, music pedagogy, network performance and monitoring, and information systems architecture. Seven institutions participate in the project as "satellite sites", engaged in user testing, test and evaluation of network access to synchronized multimedia, and evaluation of music teaching tools.  Three are in the US (Univ. of Illinois, Northwestern Univ., Univ. of Massachusetts); three in the UK (Kings College, Loughborough Univ., Oxford); and one in Japan (Waseda Univ.).