 Over the course of the past hundred years, this restriction has virtually disappeared.” Elsewhere, DeLio describes his attraction to percussion instruments, explaining, “Percussion allows a composer to deal with sounds drawn from the entire pitch/noise continuum.Thus, pitch is one manifestation of all sound ranging from pure tones to noise bands.” Cage was a pioneer in this area, writing for a wide variety of percussion instruments, electronic devices, and even household objects to produce new sounds.Composers like DeLio are heavily indebted to his work.