The question requires identifying the author of the prominent musicological text titled 'Sangita Ratnakara'. This text holds significant importance in the study and understanding of Indian classical music and performing arts.
'Sangita Ratnakara' is a comprehensive Sanskrit treatise dating back to the 13th century. It is widely considered a foundational text that meticulously details various aspects of Indian music, including melody (raga), rhythm (tala), musical instruments, vocal music, instrumental music, and dance.
The author responsible for the creation of 'Sangita Ratnakara' is Sarangadeva. He was a prominent scholar and musician associated with the court during the Yadava dynasty, which ruled in the Deccan region of India around the 13th century.
Sarangadeva's work is celebrated for its depth and systematic approach to musicology. It serves as a crucial historical document, offering insights into the musical practices and theories prevalent during his era.
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In summary, the musicological text 'Sangita Ratnakara' was authored by Sarangadeva.