His best known work from this period include "Seeya Manamalaya" from Asoka (1955), "Amu Pitisareyeki" from Seda Sulang (1955), "Upatha Labaa" and "Suba Aasiri (Hanika Yamang)" from Mathalang (1955), "Surathalee" from Surathalee (1956), "Katey Kiri Suwanda" from Sandesaya (1960), "Oya Belma" and "Waththe Wetunu Pol Athu" from Kurulu Bedda (1961) and "Man Mula Wela" from Deepashika (1963).
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To master the flute, Walpola began taking lessons from Eddie Master and then attended R. A. Chandrasena's Academy.