¿Cuántas octavas puede cantar Taylor Swift?

Taylor Swift's vocal range is often cited as spanning around three octaves, generally from the lower register note of D3 up to a G5 in her chest/mix voice, with even higher notes reached in her head voice and falsetto. As her discography has grown, her control, breath support, and dynamic range have noticeably evolved from her earlier country albums to her more recent pop and alternative works.