Chants Daily on Instagram: "‘Tantum ergo’ is the incipit of the last two verses of ‘Pange lingua’, a Medieval Latin hymn composed by St Thomas Aquinas circa A.D. 1264. The singing of the ‘Tantum ergo’ occurs during adoration and benediction of the Blessed Sacrament in the Catholic Church. A partial indulgence is granted to the faithful who devoutly recite the Tantum ergo. But a plenary indulgence is granted on the feast of Corpus Christi, if it is recited in a solemn manner. Tantum ergo sacramen