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His search for like-minded colleagues led him to team up with the charismatic American ethnomusicologist Ted Levin, and with the Aga Khan Development Network, whose conservation projects already stretched from one end of the Muslim world to the other. Levin, who has spent decades tramping Central Asia in search of the region’s indigenous musics, and whose books have been the first to explain their richness to the West, had his own epiphany. “I went to Israel to search for my spiritual roots,” he says, “but wandering round east Jerusalem I chanced to hear the muezzin – that finely etched, highly embellished cry to God. Hearing that sound changed my life. It started me on a journey that’s still moving eastward.”