Bhṛgu–Bharadvāja-saṃvāda: Vānaprastha-parivrājaka-ācāra, Abhaya-dharma, and Lokānāṃ Vibhāga (Śānti-parva 185)
षड्ज ऋषभगान्धारौ मध्यमो धैवतस्तथा । पज्चमश्नापि विज्ञेयस्तथा चापि निषादवान्
ṣaḍja ṛṣabha-gāndhārau madhyamo dhaivatas tathā | pañcamaś cāpi vijñeyas tathā cāpi niṣādavān ||
Bharadvāja said: “Know the musical notes as follows: Ṣaḍja, Ṛṣabha, and Gāndhāra; then Madhyama and Dhaivata; and also Pañcama—together with Niṣāda.” In this instruction, the sage lays out the ordered structure of sound, implying that disciplined knowledge and right arrangement (krama) are essential for any refined art and, by extension, for a well-governed life.
भरद्वाज उवाच