Vocal Range

C3 ~ C#6 (3 octaves and 1 semitone)

Supported Range

G3/G#3 ~ B4/C5

Voice Type

Light Lyric Soprano

Strengths/Achievements Made good progress from debut until now Musicality has improved since debut Intonation is mostly on point, rarely goes off pitch within her supported range Able to consistently show support up until B4 and C5, at times with resonance Resonance has been present in her voice, even if not consistently Able to use a pure connected head voice as high as F5 Lower range is more somewhat developed, able to support G3’s at times Due to the headiness of her mix, strain isn’t as apparent Only Girls’ Generation member who has mixed a G#5 Breath control has improved since debut Voice becomes very comfortable and placement is better when singing Jazz/Musical Theatre Able to produce a healthy even vibrato Weaknesses Notes below G3 are generally quieter and gradually become airier in tone Nasality is still a factor and part of her singing voice Her notes above C5 become inconsistent and often pushed Mixed voice is overly heady, voice lacks power and stability above D5 Head voice isn’t used as often as she could, voice becomes airy too often Vocal runs are often messy and out of place Diction can come in the way from her singing and openness Aye (애) vowel can be an issue in her upper mix Vibrato becomes unstable and uneven above her supported range, or often even absent Registers Lower register: Although not fully developed, her tone is very present even as low as F#3 and sometimes F3. Her voice only shows consistent support starting from G#3 and at times G3, showing improvement since debut. Mixed register: Her voice is supported and consistently able to sing with a relaxed tone up until the B4 area and C5 as well, even though at times the voice may show tension on C5. Straining only really happens as she ascends above C5, where her mixing is uneven and her larynx raises. Upper register: Head voice is present and is connected, although falsetto is more used stylistically, her voice is able to stay connected into a supported head voice up until F5 and can still stay connected above F5, even though tension is added. Agility

Possessing a light voice, Seohyun’s voice finds itself more capable of doing vocal runs and does not have as many issues with it. At times her voice can handle easy vocal trills and isn’t incapable of traveling through notes quickly, even if the precision in pitch may be weak, such as in “Sometimes“. When her voice is required to handle more intricate runs, her ability to quickly move in between notes becomes compromised and her pitch is often loose, her runs messy and sloppy, and her separation of pitch is not precise. An example of this would be her run into F5 and descending down from the chorus of “Dancing Queen” and many of the vocal runs in her cover of “Jack“.

Overall analysis

One of the most well known groups in current Korea, Girls’ Generation is birth to many talented members and Seohyun would be no exception. Vocally speaking, the group is composed of 9 members, which creates pros and cons, giving more members the title of main and lead vocalist, but also making members too comfortable with not singing main and not having to better themselves. As a lead vocalist, Seohyun’s challenges were never as big as the main vocalists, Taeyeon and Jessica, but more recently she has gone out of her way to improve herself and has shown it very well in her vocal performances and in musical numbers. Her voice is naturally bright and light, with a girly tone, very much like every other member of Girls’ Generation she is a light lyric soprano, with a three octave range.

The bottom of Seohyun’s range is very extensive and can go down as low as C3, as she does in “처음이었죠”, however so her voice only really truly gains tone around E3, F3 and F#3. Her tone is present in the lower parts of her range, but the support is gaine