Explanation:

- M.S. Subbulakshmi: ?? The first Indian musician to receive the Ramon Magsaysay Award for Public Service in 1974. She was a renowned classical vocalist and contributed significantly to Indian music and culture.

- Zakir Hussain: A famous tabla virtuoso known globally for his tabla playing and contributions to musical fusion. However, he hasn't received the Ramon Magsaysay Award.

- Bhimsen Joshi: A renowned Hindustani classical vocalist famous for his contributions to Indian classical music. He has received prestigious awards but not the Ramon Magsaysay.

- Bismillah Khan: One of India's most celebrated shehnai maestros, known for taking the instrument to global stages. He hasn't been awarded the Ramon Magsaysay either.