The Sama Veda stands as one of the four principal Vedas of Hindu tradition, distinguished by its orientation toward sacred song and chant. Rather than presenting an entirely new body of theological material, it consists primarily of verses drawn from the Rig Veda, rearranged and adapted for melodic recitation in ritual settings. Its central concern is the sāman, the chant rendered with specific melodic patterns, intonations, and rhythmic structures. In this sense, it functions as a liturgical songbook, shaping how divine praise is to be voiced rather than what is to be said. The tradition associates this Veda especially with the udgātṛ priests, whose responsibility in the soma sacrifice is to perform these chants at designated moments.

The internal structure of the Sama Veda reflects this musical and ritual focus. It is commonly divided into two main sections: the Ārcika, which presents the collection of verses, and the Gāna, which arranges those same verses with musical syllables and patterns for actual chanting. Its organization follows melodies (sāman) rather than being ordered primarily by deity or poetic meter. Different recensional traditions preserve variations in melodies and arrangements, yet all maintain the emphasis on precise musical rendering. The text thus provides not only the words of the hymns but also indications akin to musical notation, guiding the correct tonal and rhythmic performance.

When viewed alongside the other Vedas, the distinctive character of the Sama Veda becomes clearer. The Rig Veda is primarily a collection of metrical hymns and mantras in praise of various deities, with an emphasis on poetic expression and invocation. The Yajur Veda, by contrast, focuses on prose formulas and verses that prescribe ritual actions and procedures, concentrating on the practical conduct and mechanics of sacrifice. The Atharva Veda contains hymns, spells, and rituals related to healing, protection, prosperity, and other concerns of everyday life, including elements of folk religion and magic. Against this backdrop, the Sama Veda is set apart as the Veda of sacred music, transforming largely Rig Vedic material into a carefully codified system of sung hymns essential to the proper performance of Vedic ritual.