![Hammered Dulcimer Player [enlarge]](http://farm4.static.flickr.com/3299/3258409283_6ed5b56f6a_o.jpg)
I am no music expert but after some research I would say this is a modest variant of a hammered dulcimer or psaltery (salterio in Spanish). There is some confusion about the terms dulcimer and psaltery whether the strings are plucked or hammered but experts say both words have been used indistinctly through history. As you can guess this is a very old instrument. It appeared in Persia about 2000 years ago and our modern piano evolved from this peculiar wooden box. This woman was in the middle of Portal del Angel flooding the place with sweet melodies that evoked ancient times. If you want to feel the same take a look at this marvelous video: Mermaid Medieval Hammered Dulcimer.
