Historical musical pieces make their way to us through multiple documents and it often happens that multiple sources introduce differences and variants in the music. meiView is a sample web application capable of displaying 15–16th century music (more precisely, the transcription of such music into common western music notation), and provide a dynamic mechanism for the user to select which variant they want to see.
For a demonstration of its capabilities, open meiView, and click on the green dots to see the differences between the sources. In the sidebar you can see the highlighted sources and variants you have selected. When you select a variant, the score automatically updates so that the selected variant is displayed. With this application you can select an arbitrary combination of variants, effectively creating your own ‘edition’ or a customized ‘view’ of the music.