पंडित पन्नालाल घोष, जिन्हें अमल ज्योति घोष के नाम से भी जाना जाता है, एक प्रसिद्ध _______ वादक और संगीतकार थे।

The tabla and the mridangam are examples of which type of musical instruments, commonly used in Indian classical music?

Into how many primary categories are Indian musical instruments traditional classified (Natya Shastra classification system) based on the mechanism of sound production?