CAO Search Facility Insert a keyword Insert a name of a genre all chants of this genre will be shown) Antiphon Responsorium Vers Versiculum Hymnus Invitatorium Graduale Miscellaneous Insert a keyword and select a genre Antiphon Responsorium Vers Versiculum Hymnus Invitatorium Graduale Miscellaneous Please insert a CAO number (only the digits, without CAO in front) Psalm incipits Insert a keyword Insert a psalm number   Compiled and programmed by Robert Klugseder on the basis of texts supplied by the CANTUS project, University of Western Ontario (see our “Links”). Non-CAO texts are not included. See also the search facilities within the CAO-ECE project at the Institute of Early Music, Budapest (see our “Links”).