Sentence:  For they ſhall yet belye thy happy yeeres, / That ſay thou art a man: "Dianas" lip / Is not more ſmooth, and rubious: thy ſmall <WSD>pipe</WSD> / Is as the maidens organ, ſhrill, and ſound, / And all is ſemblatiue a womans part. 
Meaning of the word marked with <WSD> tags:  The key or sound of the voice. (from 16th c.)