What is a Harp with Nadia Pessoa: Ancient origins to modern innovations!

Not too many instruments in the orchestra have a history that spans the centuries, and use of the harp! Nadia Pessoa, a Washington, DC-area harpist, shares with us the harp's use in the orchestra from around 1600 to now, answers John's burning questions, and plays for us, including a recent viral tune on the harp.