This script searches the raw text of the LMLO database. Any occurence of the search phrase will be marked blue, be it in a chant text, a saints's name or elsewhere. Each table gives access to the corresponding office.
| name of feast | PETRUS [the Apostle, his Chair] |
| X-code | [PT21~2] |
| [&] author of original | [&] Hucbald of St-Amand wrote the office In plateis for this feast, but it is not rhymed and is |
| general information | the same saint as Petrus, above, but here the feast of the Chair of Peter |
| Kalendar date | January 18 [Rome], Feb. 22 [Antioch and nowadays] |
| general notes: not in database | not in the database |
| abbreviated feastname | _Ptr.C |