Read aloud highlighting on sheet music
Adding bar by bar highlights to sheet music.
Circular Software has done some experimentation and worked on a short series of ebooks for Faber Music which involved interactive highlighting for teaching piano.
Here is a clip of a similar type of effect.
We developed some semi-automated tools which are not in the public version of Circular Software as part of this project, If this interests you please contact us to find out more and to discuss your requirements.