his first appearance with Padmini. Although the duo were initially supposed to be billed as Ramamoorthy-Viswanathan, N. S. Krishnan felt having Viswanathan's name first sounded better and told Ramamoorthy, "You are senior to him so you can be behind him, supporting him" and Ramamoorthy assented. Composer and singer C. S. Jayaraman commissioned Viswanathan–Ramamoorthy for Ratha Kanneer background music, writing the songs himself. Success Success was slow in coming during a period which featured composers such as G. Ramanathan, S. V. Venkatraman, K. V. Mahadevan, S. Rajeswara Rao, S. Dakshinamurthi and Pendyala Nageswara Rao. In the wake of Panam success, however, Viswanathan–Ramamoorthy wrote music for over 100 films from 1952 to 1965 and were the most successful composers from 1957 to 1965. They had a flair for light, sweet melodies, and 1950s films such as Porter Kanthan, Paasavalai, Thenali Raman, Gulebakavali, Sugam Enge and Sorgavasal attracted attention. In 1956 Viswanathan–Ramamoorthy composed music for Santhosham, the Telugu adaptation of the Tamil film Velaikaari with N. T. Rama Rao and Anjali Devi, which was a musical hit. It was reprised in Hindi as Naya Aadmi with music by Madan Mohan, who wanted to keep some of the original songs in the Hindi version. The Hindi song "Laut gaya gam ka zamana", sung by Lata Mangeshkar and Hemanta Kumar Mukhopadhyay, copies the duo's Telugu song Teeyani Eenati Reyi (sung by P. Suseela and G. K. Venkatesh) and was a hit in the north. During the late 1950s, Viswanathan–Ramamoorthy composed for musical hits such as Pudhaiyal, Nichaya Thaamboolam, Padhi Bhakti and Bhaaga Pirivinai. They enjoyed continued success into the early 1960s with directors T. R. Ramanna and A. Bhimsingh. After a 1961 disagreement with his composer, A. M. Rajah, C. V. Sridhar commissioned Viswanathan–Ramamoorthy for his films and Gemini Studios and AVM Productions later engaged the duo. At this time, they were assisted by R. Govardhanam, G. K. Venkatesh, Shankar–Ganesh and Henry Daniel and used Sathan for vocal and sound effects. Other collaborations Viswanathan and Ramamoorthy, particularly Viswanathan, are credited with moulding the careers of their regular singers T. M. Soundararajan, P. Susheela, P. B. Sreenivas, Seerkazhi Govindarajan and L. R. Eswari. A. L. Raghavan and S. Janaki sang less often for them. K. J. Yesudas had his only collaboration with the duo in two songs from Kadhalikka Neramillai (1964): "Nenjathai Alli Alli" with L. R. Eswari and P. Suseela and "Enna Paarvai Undhan Paarvai"