The correct answer is Direct.
The best term which describes one method which is simple in performing a chant is referred to as Direct.
Chant is termed as a way of singing of some words, or speaking, or sounds.
It involves set of notes which are highly limited and they have musical structures which are complex. For example, repeating of musical sub phrases like offertories and Great responsories.
Chant is mostly used in spiritual practice. For example, sacred text, mantra and name of God.
