This work remains the ultimate resource because it introduced the now-universal for classifying ragas. Before Bhatkhande, ragas were often grouped in confusing and unscientific ways (e.g., "male" ragas, "female" raginis). He brilliantly simplified this by organizing all ragas under ten fundamental thaats (parent scales) based on their note combinations, a system still used by musicians worldwide today.

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Explained the technical aspects of Sangeet (musicology), such as Shruti, Swara, Tala, and Raga lakshanas.

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He classified hundreds of Hindustani Ragas into 10 basic scales, known as Thaats (Bilawal, Kalyan, Khamaj, Bhairav, Bhairavi, Asavari, Todi, Poorvi, Marwa, and Kafi).

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