Srimad-Bhagavatam: Canto 10 - Chapter 1 - Verse 8

Sanskrit:

उच्चैर्जगुर्नृत्यमाना रक्तकण्ठ्यो रतिप्रिया: ।कृष्णाभिमर्शमुदिता यद्गीतेनेदमावृतम् ॥ ८ ॥

ITRANS:

uccair jagur nṛtyamānārakta-kaṇṭhyo rati-priyāḥkṛṣṇābhimarśa-muditāyad-gītenedam āvṛtam

Translation:

Eager to enjoy conjugal love, their throats colored with various pigments, the gopīs sang loudly and danced. They were overjoyed by Kṛṣṇa’s touch, and they sang songs that filled the entire universe.

Purport:

According to an authoritative book on music called Saṅgīta-sāra, tāvanta eva rāgāḥ sūryāvatyo jīva-jātayaḥ, teṣu ṣoḍaśa-sāhasrī purā gopī-kṛtā varā: “There are as many musical rāgas as there are species of life. Among these rāgas are sixteen thousand principal ones, which were manifested by the gopīs.” Thus the gopīs created sixteen thousand different rāgas, or musical modes, and these have subsequently been disseminated throughout the world. The words yad-gītenedam āvṛtam also indicate that even today devotees throughout the world sing the praises of Kṛṣṇa, following the example of the gopīs.