Polythematic, partially imitative fantasia. Quite a bit more successful than other Pisador works a4, and fitting into the basic tripartite formula of the previous works Pisarro 46 & 47.
However, this work is looser with imitation less pervading, and more focus on the non-imitative areas. The themes of this work are quite different to his other yet examined – quite a bit more reminiscent of Luys Milan – as is the general style of the work with its many cadences at short spaces, and fleeting little quaver themes. The work opens with a lovely pair of duos, of theme one. The imitative material is introduced regularly at 25 bar intervals, dividing the work into three almost equal parts (only the last is shorter as Pisarro 47); I (1-25); II (25 – 50); III (50-71).
The sections appear progressively less imitative.
I – duos S/A – T/B of 1 then short 2 bar episodes cadentially separated of free full texture with theme 2 being the bass kernel of 2 successive episodes. Cadential practice quite competent.
II – begins with duos again: S/A of 3 mod – A/B of 3 – T/B of 3 >> long free meandering section, rather wayward but becoming more concerned as it proceeds, with reduction of texture & Quaver movement until III grows out of it.
III – begins with Milan style theme 4 and proceeds waywardly with a few more appearances of 4 and other little Quaver figures 3 reoccurs in B at 54-55.