Medio registro bajo

Pablo Bruna (1611 – 1679) was a Spanish composer and organist notable for his blindness (suffered after a childhood bout of smallpox), which resulted in his being known as "El ciego de Daroca" ("the blind man of Daroca").
It is not known how Bruna received his musical training, but in 1631 he was appointed organist of the collegiate church of St. María in his hometown of Daroca, later rising to choirmaster in 1674. He remained there until his death in 1679.
Thirty-two of Bruna's organ works have survived, mostly in the tiento form. Many, known as tientos de medio registro, are for divided keyboard, a typical feature of Spanish organs. Bruna was known as a capable teacher and his nephew Diego Xaraba, whom he taught, also became a prominent musician.
This is a good example of a medio registro composition, with accompaniment in the right hand and bass lines in the left.

I varied registration and tempo between parts of the composition to get a more lively interpretation.