In 1966,The Mother asked Sunil Bhattacharya to compose the musical accompaniment for Her readings of Sri Aurobindo’s Savitri. He continued to compose music for Savitri (and for the New Year) till his passing in 1998.
In his compositions for Savitri and for the New Year, Sunilda incorporated chantings of mantras from the Vedas, the Upanishads and various Stavas and Stotras, invoking the diverse Godheads of India. To him, the Mother and Sri Aurobindo were the Supreme as well as all the Goddesses and Gods of Indian mythology. As a result, we often find him replacing the names of the different deities mentioned in the originals with the names of the Mother or Sri Aurobindo.
MANTRAS IN SUNILDA'S SAVITRI MUSIC
SAVITRI BOOK 07 CANTO 03
Come to us ; the human being, god-seeking, is desirous of sacrifice, he has made all ready but thou dwellest in the darkness, O Fire. Make the paths of the journeying of the gods easy to travel, let thy mind be at ease, carry the offerings.
Since we make thy life imperishable, O Fire, O knower of all things born, so that yoked with it thou shalt not come to harm, then with thy mind at ease thou canst carry their share of the offering to the gods, O high-born Fire.
Rig Rig Veda 10.51.5,7
Translation by Sri Aurobindo
SABCL Vol 11, p 406.