DONE add cl!pisu1 and cl!pisu1pp2, found in this score. They do not render well.

Backported dcrochu's b-flat at the end of the verse. Easy to sing, consistent with the following melody.

Unepisemated a pr- which is there only because of H's inconsistency

Gregofacsimil cum NABC

• syllabisations: Red/emit • retouche du V/ avec ajout d'un bémol final, en raison de la cadence suspensive