St. Ambrose is considered as the first who introduced the antiphonant
method of chanting, or one side of the choir alternately responding to
the other; from whence that particular mode obtained the name of the
"Ambrosian chant," while the plain song, introduced by St. Gregory,
still practised in the Romish service, is called the "Gregorian," or
"Romish chant." The works of St. Ambrose continue to be held in much
respect, particularly the hymn of _Te Deum_, which he is said to
have composed when he baptised St. Augustine, his celebrated convert.
[1] _Mems., Maxims,_ and _Memoirs._ By W. Wadd, Esq.
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