John Weeks Moore, Complete Encyclopaedia of Music… (1880)
“ As the instrument is new, so it is also easy to construct and very pleasant. It is the admiration of every one. It is made exactly to tit a window, in which it is placed ; and the harp, while the window remains shut, is silent : but as soon as it is opened, an harmonious sound, though somewhat melancholy, coming from the passing wind, astonishes the hearers; for they are not able to perceive from whence the sound proceeds, nor yet what kind of instrument it is, for it resembles neither the sound of a stringed nor yet of pneumatic instrument, but partakes of both. ”
