ABC notation is a non-commercial open standard for music notation as text. For the present application we are using Abcjs. Abcjs is a Javascript based implementation of ABC notation which can be integrated in html files. Find more information about the tool and about Absjs in general on https://github.com/man-schu/dacapoeditor/.
When loading an abc file, click in the text area to refresh the music sheet.
Observe that the music sheet will not refresh if the abc file contains errors.