Juan Bautista José Cabanilles (1644-1712) was a prominent Spanish composer and organist, recognized primarily for his contributions to the Baroque music genre. Born in Algemesí, Valencia, Cabanilles served as the organist at the Valencia Cathedral, where he composed a significant body of work. His notable pieces include a collection of organ toccatas, fantasias, and variations, which showcase his virtuosic keyboard skills and innovative approach to harmony and counterpoint. One of his most distinguished works is the "Clavier-Übung," which exemplifies the intricate and expressive style characteristic of Baroque organ music. Cabanilles’ impact on music lies in his role as a bridge between the Renaissance and Baroque periods in Spain. He is often regarded as one of the foremost Spanish organ composers, influencing subsequent generations of musicians within the Iberian Peninsula and beyond. His compositions reflect a deep understanding of both liturgical music and the emerging secular styles of his time, making him a key figure in the development of Spanish Baroque music. His music continues to be performed and studied, contributing to the ongoing appreciation of Baroque repertoire.