Polythematic imitative / free fantasia. Not such a successful work. Begins with imitative treatment of theme 1 making a section that extends to bar 24 with a full cadence. A new section begins with single S/A - T/B pairs of theme 2 at bar 25 >> theme 3 is similarly paired in 45-48. Opening polyphony is quite good, notable for the length of its theme, uncommon in all vihuela literature.