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In order to allow for the production of a buzzing timbre, he has installed small PET film membranes similar to the dimo used on the Chinese dizi on several of his instruments; he calls flutes so equipped "matusiflute." In addition, he plays quarter tone flutes.
Maalouf's son, Ibrahim Maalouf (b. 1980), is also a classically trained trumpeter and plays the quarter-tone trumpet.