Genre:
Full text:
Tantum ergo sacramentum veneremur cernui et antiquum documentum novo cedat ritui praestet fides supplementum sensuum defectui
Feast:
Notes:
See also: http://www.preces-latinae.org/thesaurus/Euch/Tantum.html where the last two verses are sometimes a separate hymn.
AH volume:
50
AH item number:
386