Tomás Luis de Victoria is a Spanish composer who lived at the same time as St Teresa of Avila and St John of the Cross. As he was from Avila himself and later settled in Madrid as an organist and priest, it is very likely he knew and was influenced by the mystical fervor of the great Spanish mystics.
The following is a simple Motete: O Regem coeli, Natus est nobis
The city walls of Avila
The Living Room 