Tiento Partido de Mano Derecha, or Tiento For the Right Hand, by 17th century Spanish Composer Pablo Bruna, played by Ron McKean on a Spanish-style pipe organ built by Manuel Rosales at Mission San José in Fremont CA. Towards the beginning of the video, you will see how
tracker action works.
As a bonus, here he is playing Tiento Partido de Mano Izquierda, Tiento For the Left Hand: