Flamenco and jazz share similar elements of improvisation and free-styling. In addition, they both make use of call and response (where one artist offers a phrase and the second artist responds with a commentary). In this way, much like jazz musicians, flamenco artists are constantly communicating with one another with their art and feeding off one another
This sort of musical communication easy lends itself to improvisation. This is especially true with flamenco where songs technically do not exist. That is to say that the structure contains phrases that are never repeated. Each performance is wholly unique.
This is in agreement when Lorca stated that, “… it’s impossible for it ever to repeat itself, and it’s important to underscore this. The duende never repeats itself, any more than the waves of the sea do in a storm.”
When flamenco artists communicate amongst themselves on stage and then make a strong connection with the audience, duende certainly plays a strong role. Duende most often appear when artists are improvising and they simply get in the zone, releasing pure emotions. As it is often said, it’s not about the notes that are played, but how they are played.