I am actually seeking a full version of a much more complex four-voice Guerrero chorale (either Pedro's or Ferdinand's) that I have one page of from elsewhere. I play several sizes of a wind instrument. The page I have shows the work is mainly composed of half notes with lengthy ties that cross 3 to 5 bars in the different voices of the piece. Supposedly the work is available at a university music library in Pennsylvania, but I have not had the chance to go there yet. The second page soprano line words start out as u - ni - ca pee-ca - to - - rum per te spe- ra-mus ve - ni-am de- li - eto-rum no- stro - rum per te spe- ra - mus ve- ni... It is a really beautiful piece. This piece on this site looks good as a warm-up piece or as a piece to study composition.