Excerpts from Gowri Ramnarayan's MS & Radha: Saga of Steadfast Devotion
Every one of these songs, by composers old and new, was first inscribed with its meaning in her notebook, and then each phrase notated with its literal and metaphoric meanings. Music notation came next.
The initial learning process included checking diction, emphasis, and the right spot where a phrase could be split in melodising. Experts were consulted to ensure accuracy.
Her vak suddham (lucid enunciation) matched her sruti suddham (fidelity to pitch). Instinct might have played its part, but the effort expended on such mastery was considerable.
Kunjamma thought her music through and shaped her own original aesthetics. Like the ancient Indian aestheticians she believed that auchitya or appropriateness was essential for art that was allusive, art that strove for the sublime."
For full article - please read The Process Behind the MS Magic
"When she recorded Kamban’s Ramayana verses, Tamil scholar Justice MM Ismail was consulted before she embarked on the project, as also before the actual recording. Notably, none of these recordings saw her hold the written text in her hand. Learning by heart was vital to truly knowing the words and melody, to flawless delivery in performance."
Here is a Youtube link of a recording of Kamba Ramayana verses :
Youtube - Smt. M.S. Subbulakshmi-Kamba Ramayana padalgal