Concept:
Acharya Bharat's Natyashastra is the foundational encyclopedia for ancient Indian performing arts, encompassing drama, dance, and music theory. The musical sections are systematically structured into specialized chapters.
Step 1: Examine the distribution of musical chapters in Natyashastra.
The musical concepts in the text are broadly covered from Chapters 28 to 36. Among these, Chapter 28 introduces the classification of musical instruments (Vadyas) into four universal groups: Tata (stringed), Avanaddha (percussion/membrane), Sushira (wind), and Ghana (solid/ideophones).
Step 2: Locate the detailed description of Avanaddha instruments.
A comprehensive and specialized description focusing on the creation, structures, materials, and playing techniques of percussion instruments (Avanaddha Vadyas) is specifically detailed in the \(33^{\text{rd}}\) Chapter.