Sentence:  In all his miscalculations , Stravinsky made the fatal historical blunder of presuming that he could transform <WSD>other</WSD> composers ' inspirations - representing many peoples , time periods and styles - into his own music by warping the harmony , melody , or form , to verify his own experiments . 
Meaning of the word marked with <WSD> tags:  not the same one or ones already mentioned or implied