Alicia Keys Vocal Range

Vocal Type: Contralto
Vocal Range: 3 octaves and a semitone Bb2-B5
Vocal Strengths: Alicia Keys is capable of singing complex vocal runs, through the registers, and is able to hold notes for periods of time without wavering in pitch or tone.
The lower range is easily accessed and has a darkness and weight that pervades through the rest of the range. It has a slight breathy quality at times, but the voice sounds comfortable in this part of the range.

Alicia Keys' midrange is sweet and warm, with a smokiness and slight rasp to it. Her voice finds this part of the range easiest, as well as the extremes on either side of it, to navigate.

The belting range is weighty and thick and often shares the smoky quality of the lower range. The notes above the fifth octave are most often reached without the aide of mixing with the head voice, and the resulting tone has a good dynamic, fuller sound and a rawer edge. Alicia Keys can mix her notes and produce a purer tone, but it comes at the expense of the power and fullness of the sound.

The head voice is pure and bright with a weight and warmth. 
Vocal Weaknesses: The way Alicia Keys maintains her thicker belting tone, without mixing, could have a negative effect on the voice, ultimately inflaming it and producing a harsher sound.