If music is the food of love, it is also the soul of pageantry. Pomp and circumstance need stirring aural accompaniment to come alive, and nowhere does a period musical score vivify and enhance spectacle more impressively than in the riotous wonder of the Esala Perahera, the annual ten-day medieval pageant held in Sri Lanka’s hill capital, Kandy. Kandy’s Esala Perahera (literally “July-August Procession”) dates, in its present form, from the last quarter of the 18th century, when it expressed royal homage to the Sacred Tooth Relic of Lord Buddha, enshrined in the temple known as the Dalada Maligawa, and to the four guardian deities of Sri Lanka: Katha, Vishnu, Kataragama and Pattini. Yet the Sri Lankan people have celebrated pageants to honour the Sacred Tooth Relic, the palladium safeguarding the nation, ever since it was brought to the island in the 4th century A.D. With its five processions — one each from the Dalada Maligawa and the four deistic temples — the Kandy Peraher...