Coormaraswamy and Duggirala (1917). "The Mirror of Gesture". Harvard University Press. p. 4.; Also see chapter 36
Beck 2012, pp. 138–139. Quote: "A summation of the signal importance of the Natyasastra for Hindu religion and culture has been provided by Susan Schwartz (2004, p. 13), 'In short, the Natyasastra is an exhaustive encyclopedic dissertation of the arts, with an emphasis on performing arts as its central feature. It is also full of invocations to deities, acknowledging the divine origins of the arts and the central role of performance arts in achieving divine goals (...)'".. Beck, Guy L. (2012). Sonic Liturgy: Ritual and Music in Hindu Tradition. Columbia: University of South Carolina Press. ISBN978-1-61117-108-2. Schwartz, Susan L. (2004). Rasa: Performing the Divine in India. Columbia University Press. ISBN978-0-231-13144-5.
Sastri 1943, p. xxii, Quote: "[In ancient Indian culture], the musical notes are the physical manifestations of the Highest Reality termed Nada-Brahman. Music is not a mere accompaniment in religious worship, it is religious worship itself".. Sastri, S.S., ed. (1943). Sangitaratnakara of Sarngadeva. Adyar: Adyar Library Press. ISBN978-0-8356-7330-3.
William Forde Thompson (2014). Music in the Social and Behavioral Sciences: An Encyclopedia. SAGE Publications. pp. 1693–1694. ISBN978-1-4833-6558-9.; Quote: "Some Hindus believe that music is one path to achieving moksha, or liberation from the cycle of rebirth", (...) "The principles underlying this music are found in the Samaveda, (...)".
Beck 2012, pp. 138–139. Quote: "A summation of the signal importance of the Natyasastra for Hindu religion and culture has been provided by Susan Schwartz (2004, p. 13), 'In short, the Natyasastra is an exhaustive encyclopedic dissertation of the arts, with an emphasis on performing arts as its central feature. It is also full of invocations to deities, acknowledging the divine origins of the arts and the central role of performance arts in achieving divine goals (...)'".. Beck, Guy L. (2012). Sonic Liturgy: Ritual and Music in Hindu Tradition. Columbia: University of South Carolina Press. ISBN978-1-61117-108-2. Schwartz, Susan L. (2004). Rasa: Performing the Divine in India. Columbia University Press. ISBN978-0-231-13144-5.
Forster 2010, pp. 564–565, Quote: "In the next five sections, we will examine the evolution of South Indian ragas in the writings of Ramamatya (fl. c. 1550), Venkatamakhi (fl. c. 1620), and Govinda (c. 1800). These three writers focused on a theme common to all organizational systems, namely, the principle of abstraction. Ramamatya was the first Indian theorist to formulate a system based on a mathematically determined tuning. He defined (1) a theoretical 14-tone scale, (2) a practical 12-tone tuning, and (3) a distinction between abstract mela ragas and musical janya ragas. He then combined these three concepts to identify 20 mela ragas, under which he classified more than 60 janya ragas. Venkatamakhi extended (...).". Forster, Cris (2010). Musical Mathematics: On the Art and Science of Acoustic Instruments. Chronicle. ISBN978-0-8118-7407-6. Indian Music: Ancient Beginnings – Natyashastra
Forster 2010, pp. 564–565, Quote: "In the next five sections, we will examine the evolution of South Indian ragas in the writings of Ramamatya (fl. c. 1550), Venkatamakhi (fl. c. 1620), and Govinda (c. 1800). These three writers focused on a theme common to all organizational systems, namely, the principle of abstraction. Ramamatya was the first Indian theorist to formulate a system based on a mathematically determined tuning. He defined (1) a theoretical 14-tone scale, (2) a practical 12-tone tuning, and (3) a distinction between abstract mela ragas and musical janya ragas. He then combined these three concepts to identify 20 mela ragas, under which he classified more than 60 janya ragas. Venkatamakhi extended (...).". Forster, Cris (2010). Musical Mathematics: On the Art and Science of Acoustic Instruments. Chronicle. ISBN978-0-8118-7407-6. Indian Music: Ancient Beginnings – Natyashastra
Brown 2014, p. 455, Quote:"Kirtan, (...), is the congregational singing of sacred chants and mantras in call-and-response format."; Also see, pp. 457, 474–475. Brown, Sara Black (2014). "Krishna, Christians, and Colors: The Socially Binding Influence of Kirtan Singing at a Utah Hare Krishna Festival". Ethnomusicology. 58 (3): 454–80. doi:10.5406/ethnomusicology.58.3.0454.
Powers 1984, pp. 352–353. Powers, Harold S. (1984). "Review: Sangita-Ratnakara of Sarngadeva, Translated by R.K. Shringy". Ethnomusicology. 28 (2): 352–355. doi:10.2307/850775. JSTOR850775.
Dace 1963, p. 249. Dace, Wallace (1963). "The Concept of "Rasa" in Sanskrit Dramatic Theory". Educational Theatre Journal. 15 (3): 249–254. doi:10.2307/3204783. JSTOR3204783.
Powers 1984, pp. 352–353. Powers, Harold S. (1984). "Review: Sangita-Ratnakara of Sarngadeva, Translated by R.K. Shringy". Ethnomusicology. 28 (2): 352–355. doi:10.2307/850775. JSTOR850775.
Ries 1969, p. 22. Ries, Raymond E. (1969). "The Cultural Setting of South Indian Music". Asian Music. 1 (2): 22–31. doi:10.2307/833909. JSTOR833909.