Eightieth technique. The plucked string. Tantryādivādyaśabdeṣu — in the sounds of string instruments and similar. Dīrgheṣu — prolonged. The sound of a plucked string that vibrates and slowly dies. A tambura, a sitar, an undamped guitar.

Kramasaṃsthiteḥ — through the gradual sequence. Following the sound step by step as it decreases. From the initial strike to vibration, from vibration to barely audible tremor, from tremor to silence. Param dhvanim anuśritya — following the supreme sound, the one beyond audible sound.

What is there after sound disappears? Not ordinary silence. Sarvajñatvam — omniscience. The supreme sound is anāhata nāda — the unstruck sound, sounding eternally without anything producing it. It is the sound of consciousness itself vibrating. Whoever finds it, knows all, because they listen from the source.