Personally, I can agree with almost all of this very well written article. The writer does fail to mention one of IU's "God given" vocal qualities.

The fact that her voice sounds equally beautiful at very low and very high volume, is not from technical training. It is a gift that she simply possesses and makes her voice very rare and unique.

Of course, this is my opinion and is supported দ্বারা my discussions with several people in the সঙ্গীত industry, including one that has a doctorate degree in Musical Theory, regarding IU's vocal ability.

Vocal Range

C#3 ~ A5 (2 Octaves and 4 notes)

*Possibly can...