This is an excerpt from an interview where Mehdi Hassan Sahab is explaining the power of swar(musical notes).
On the occasion of birthday of Ustad Mehdi Hassan Sahab we had opened a telegram channel.

https://t.me/worldofindianclassicalmusic

"World of Indian Classical Music"
A Telegram Channel purely devoted to Bhartiye Shastriye Sangeet and it's all forms i.e, Hindustani and Carnatic Classical and SemiClassical Music, both Vocal and Instrumental.
Interested one's are most welcome.