The monk who pushed the boundaries of 18th-century Spanish keyboard music

Ideas & Philosophy · Published 3 October 2026 Swipe more like this →

In short: Antonio Soler was a prolific Hieronymite monk who balanced a grueling 20-hour workday with a brilliant career as a composer and royal tutor. While his keyboard sonatas remain his most celebrated legacy, his experimental approach to music theory and potential authorship of a famous fandango continue to spark debate.

Born in Olot in 1729, Antonio Francisco Javier José Soler Ramos rose from the choir school of Montserrat to become the most significant composer of instrumental and church music in late 18th-century Spain. By age 23, he had joined the Hieronymite order at the Monastery of San Lorenzo del Escorial, where he spent the remainder of his life. His routine was famously intense, involving 20-hour workdays that yielded over 500 compositions, including masses, quintets, and his signature keyboard sonatas.

Soler’s musical style was deeply influenced by his training under Domenico Scarlatti and José de Nebra. While his sonatas share the technical vitality of Scarlatti’s work, Soler often expanded the form beyond the standard one or two movements into three or four. His intellectual curiosity extended into music theory; his 1762 treatise, Llave de la modulación, explored complex harmonic ideas and even led him to invent a specialized keyboard instrument called the afinador to accommodate his experiments with microtones.

Despite his immense output, Soler’s legacy is not without mystery. His authorship of a widely performed fandango has been formally questioned by scholars, including Fr. Samuel Rubio, who once cataloged Soler’s works. This uncertainty highlights the complex task of authenticating 18th-century manuscripts. Today, Soler is remembered not just as a royal music teacher to the Infantes Antonio and Gabriel, but as a daring innovator who bridged the late Baroque and early Classical eras.

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