He’s just pointing in this image, but this Air Harp can be played using many fingers ... [Adam] adds more and more strings to the virtual instrument for his finger to interact with.

the best,) and the instrument should be placed in a window partly open, in which the width is exactly equal to the length of the harp, with the sash just raised to give the air admission.

The concert harp is famous for its heavenly image. It hasn’t always had a place in orchestral music, but since the 19th century composers like Ravel and Debussy have been in love with the instrument ...