Anūcāna (True Learning), the Vedāṅgas, and Śikṣā: Svara, Sāmavedic Chant, and Gandharva Theory
धैवते चापि विज्ञेया मूर्छना तूत्तरा मता । निषादे रजनीं विद्यादृषीणां सप्त मूर्छनाः ॥ ३९ ॥
dhaivate cāpi vijñeyā mūrchanā tūttarā matā | niṣāde rajanīṃ vidyādṛṣīṇāṃ sapta mūrchanāḥ || 39 ||
เมื่ออยู่ที่เสียงไธวตะ พึงรู้มูรฉนะชื่อ ‘อุตตะรา’; และเมื่ออยู่ที่เสียงนิษาทะ พึงทราบมูรฉนะชื่อ ‘รชนี’ ดังนี้ฤๅษีทั้งหลายได้สอนไว้ว่า มีมูรฉนะเจ็ดประการ.
Sanatkumara (teaching Narada in a technical exposition)
Vrata: none
Primary Rasa: shanta
Secondary Rasa: none
It frames music (nāda) as a disciplined sacred science: specific mūrchanās are mapped to specific svaras, showing that sound is to be learned in an ordered, rishi-transmitted way.
Indirectly: by systematizing sacred sound, it supports correct chanting, singing, and musical recitation used in devotional practice, where precision in tone and mode strengthens focused worship.
A technical teaching aligned with Śikṣā and Gandharva-veda: classification of musical modes (mūrchanā) by the notes Dhaivata and Niṣāda, culminating in the traditional count of seven mūrchanās.