[Alleluia alleluia Percussa gladio dat lac

This Alleluia for St. Catherine is relatively rare, but it is found in many Spanish printed Missals and also in southern France and Vienne, Lyon, Grenoble and Genève. It is not the Alleluia mentioned in the Braga Missals of 1498 and 1538 (Loquebar de testimoniis), or in Évora's Missal of 1519 (Ave gemma claritatis) but it appears, with the complete text, in Braga's choirbook nº 37, fol. 114v (this is an 18th-century stenciled folio, not the original one), with a different, simplified melody.