<Tr> <Th> Associated acts </Th> <Td> Ennio Morricone </Td> </Tr> <P> Alessandro Alessandroni (18 March 1925--26 March 2017) was an Italian musician and composer . He played multiple instruments, including the guitar, mandolin, mandolincello, sitar, accordion and piano, and composed over 40 film scores and countless library music . </P> <P> Being an accomplished whistler, Alessandroni collaborated with his childhood friend Ennio Morricone on a number of soundtracks for Spaghetti westerns . Morricone's orchestration often calls for an unusual combination of instruments and voices . Alessandroni's twangy guitar riff is central to the main theme for The Good, the Bad and the Ugly . Alessandroni can be heard as the whistler on the soundtracks for Sergio Leone's films A Fistful of Dollars, For a Few Dollars More, Once Upon a Time in the West, Pervirella, and many others . Alessandroni founded I Cantori Moderni, an eight singers choir, in 1961 . They provided vocals for numerous soundtracks, including those by Ennio Morricone and Piero Umiliani . </P> <P> Alessandro has also composed film scores, including Any Gun Can Play (1967), Johnny Hamlet (1968), The Reward's Yours...The Man's Mine (1969), Lady Frankenstein (1971), The Devil's Nightmare (1971), The Mad Butcher (1971), Seven Hours of Violence (1973), Poker in Bed (1974), White Fang and the Hunter (1975), Blood and Bullets (1976), L'adolescente (1976), La professoressa di scienze naturali (1976), The Opening of Misty Beethoven (1976), Women's Camp 119 (1977), Killer Nun (1978), L'imbranato (1979), and Trinity Goes East (1998). </P>

Who did the whistling in for a few dollars more
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