Enríquez de Valderrábano was a Spanish vihuelist and composer. There is little biographical data on this composer of early music, but there is some from the prologue to his book of music, Libro de música de vihuela intitulado Silva de Sirenas, published in Valladolid, Spain in 1547. It reveals that Valderrábano worked for the Duke of Béjar—Francisco de Zúñiga—but does not contain the details of his musical education or career. Valderrábano's book of music has seven parts containing fugues, contrapuntos, sonetos, bajas, vacas, discantes, pavanas, proverbios, canciones, romances, and villancicos—ordered by level of difficulty. It includes pieces for two vihuelas, for vihuela and another instrument, and for vihuela and voice.