Dionisio Aguado y García was a Spanish classical guitarist and composer. Born in Madrid, he studied with Miguel García. In 1826, Aguado visited Paris, where he met and became friends with and for a while lived with Fernando Sor. Sor's duo Les Deux Amis ("The Two Friends") commemorated the friendship: one part is marked "Sor" and the other "Aguado." Aguado's major work Escuela de Guitarra was a guitar tutor published in 1825. As of 2011, it is still in print, with Tecla Editions releasing a reprint in 2005. In the Escuela Aguado describes his use of fingernails on the right hand as well as his invention of a "tripodion": a device that held the guitar and thus minimized the damping effect of the player's body on the guitar's back and sides.