Rubric:” Another fantasia on the ‘In saecula seculorum’ of the second mode. The C clef is on the third course at the third fret.” This is a monthematic ostinato fantasia on the theme ut re ut fa mi ut re mi re [C–D–C–F–E–C–D–E–D]. Pisador intimates that this equals “el seculorum”, that is, a theme drawn from the ending of a psalm recitation formula corresponding to the text “Et saecula saeculorum, Amen” in mode 2. The single theme is present in equal voiced polyphony during most of the 98 compás work, and appears in all voices. The deployment of the theme within the work is as follows: B / T > A > S > T |free| T A S (sharing theme) > S > 2 free phrases in paired voices >T – A > |free| > A |free|> A – S – A.||
The theme appears in 3 transpositions: beginning on C, G, A. The rhythmic disposition of the theme varies quite a bit, and thus gives variety.
The work as a whole is quite well put together, and shows considerable polyphonic skill with flaws in 2 areas: the overall tonal concept, and voice leading detail, particularly at cadences. The tonality stays fairly close to D, but some occasional brief digressions save it from monotony. Some of the chord sequences are a little odd, yet don’t stick out as major flaws. There are several places where voice leading is a little strange, and several awkward cross relations (refer to my transcription). In all, the work is quite presentable. It has quite a full texture throughout. The use of voice pairing is not extensive other than at the beginning and in a small internal interlude. The fantasia is quite exacting to perform smoothly.
It seems to behave more as a piece in mode 1 than mode 2. The S is mode 1, but perhaps Pisador has calculated the modal range using the Bass voice. There are several atypical interrupted cadences.