A song presumably by Valderrábano that sets an unknown text. The text comprises four stanzas set to the same melody. The setting is divided into two parts. At the beginning of the piece, Valderrábano’s rubric reads: “This soneto has to be played quite quickly; it is easy to play” and applies to the setting of the first quatrain. At the beginning of the second section, Valderrábano writes: This second variation is on the same melody, the opening should be played slowly” (Esta otra diferencia del mismo soneto, la entrada tañerse a despacio.) The melody is slightly modified for the new setting of the accompaniment.The third and fourth stanzas are printed at the end of the tablature with the instruction “Go back to the beginning with the words of these verses”. The texture of Valderrábano’s setting appears to be more an instrumentally conceived accompaniment than an arrangement of vocal polyphony. In Pujol’s edition it is presented as Soneto IV (pujol1965)