In the Winter issue of Drawing Magazine, there's an article on the Spanish Masters, of which Francisco de Goya is counted. The drawing above is titled "A Nun Frightened by a Ghost", c. 1812–20 The Metropolitan Museum of Art, New York.
Now, way back when this was produced, roughly 140 years before Vatican II, de Goya had no way of knowing what was down the road for the Church...or did he?
Either way, it's plainly obvious that the nun is more frightened by the guitar than she is by the musical directo- um, I mean ghost.