Would you like to know even more about a work? Then try once leaving your smartphone on in the concert hall, and select the Wolfgang app: a smartphone application with which during the concert you can receive real-time explanations of the music. You only need to cast a glance at your smartphone every now and then. Wolfgang offers you short, well-timed ‘subtitles’. The app is designed in such a way that it does not disturb other concertgoers.