Linked from
The 9 pages that link to Vedic chant, each with the reason it gives.
ŚrutiRelated: Chant makes the oral performance of śruti audible and formally regulated.
AtharvavedaRelated: Precise recitation helped preserve the Atharvaveda's wording and sound.
Gayatri MantraRelated: Precise oral transmission helped preserve the mantra across generations.
Music of IndiaBroader topic: It is an ancient and continuing strand of South Asian musical practice.