B2 ~ Bb5 (2 octaves, 5 notes and 1 semitone)
D3 ~ G#4/A4
D3 ~ C#5 (with head voice)
- Strongest vocalist in 100%
- Able to produce resonance consistently
- Able to manipulate his tone production quite efficiently
- Has shown a supported connected head voice up to C#5
- Transitions into head voice are mostly smooth
- Lower range possesses support down to D3
- Mixed voice is mostly consistent with support up to G#4 and A4
Points for Improvement
- Tends to be nasal, which seems to be a stylistic choice
- Runs are often sloppy and pitchy
- Lower range below D3 is unsupported and lacks proper connection
- Head voice tends to sound pushed and tense above C#5
- Mixed voice becomes very closed and tight above A4
- Inconsistencies with his overall condition causing throatiness within his supported range
- Lower register: His lower range maintains the right amount of chest placement while still being supported and projected down to D3. Below that, he tends to lack the proper development and sounds shaky.
- Mixed register: Mixed voice has been consistently well developed even prior to his debut. Able to produce resonance consistently even up to A4. Above A4, tends to sound tight and tense.
- Upper register: Has shown good improvement in his upper register and learned to use a connected head voice, which he now favors over his falsetto. Nonetheless tension is present above C#5.
Rokhyun has shown that he is a fan of R&B and adding his own runs to many songs, but has also never been able to quite get it right throughout the years. He’s always had issues with the proper precision, where his runs would simply have no true connection, no flow and no control of pitch. The result would often be very sloppy and messy runs with questionable musical ideas behind them, as heard in “나쁜 놈“, “두걸음 걸어요“, “이 노래” and “나같은 놈.” More recently he’s shown that he’s taken the time to improve and simplify his runs, which although still not precise are much smoother and cleaner than early on in his career, as heard by the runs in “사랑을 모르다” and “추억은 사랑을 닮아.”
Rokhyun made his debut in the K-pop industry as the main vocalist of the duo JUMPER in 2009, which unfortunately disbanded soon after. He then re-debuted again as the main vocalist of idol group 100% in 2012, with fellow lead vocalist Hyukjin. As a member of 100%, Rokhyun usually takes on the most challenging parts of songs and is able to showcase his skill and the natural light weight of his voice with the high repertoire they’re given. One can clearly hear the lightness and brightness of his youthful voice, very strong characteristics of a light lyric tenor.
The lower portion of his range is mostly under-explored and not used very often. Nonetheless Rokhyun shows a good understanding of proper support and placement as he descends into his chest voice. He’s able to maintain proper chest placement while keeping his vocal cords connect and his breath management engaged to properly support his voice. Having said that, he still shows a lack of development of his chest voice muscles below D3, where his voice starts to lose connection and tone, becoming muffled and shaky. Support down to D3 can be heard with the D3’s in “나였으면” and “사랑을 모르다“, while anything below D3 tends to become fairly unstable, as heard by the C#3’s in “두걸음 걸어요“, C3’s in “사랑을모르다“, “단발머리” and the B2’s in “추억은 사랑을 닮아.”
His mixed voice is the area of his voice where he seems to be most comfortable. He is able to shine through and project quite effortlessly, and has done so ever since he was a teen. However as he aged, issues with nasality started to become more apparent as well as having a more whiny quality to his overall singing. This can be attributed to him adopting a different vocal style after his second debut, because he has shown in many different occasions that he’s able to eliminate nasality at will and has been able to produce resonance consistently up to A4. Examples of him producing resonance include the F4’s in “I’ll Be Back“, “눈이 부셔“, “Yes!“”F#4’s in “Lovestory“, “꽃피는 봄이 오면“, “Love in the Ice“, G4’s in “심장소리“, G#4’s in “Missing You“, “나같은놈“, “Go On Girl“, “사랑을 모르다“, “나쁜놈“, and the A4’s in “나였으면” and “단발머리.”
There are issues within his supported range where he tends to become more fatigued, in which his voice starts to become scratchier and throaty even within his comfortable supported range, as heard in “심장소리.” However, issues with strain and nasality are only truly a problem for him above A4, where he has yet to truly the ability to keep proper support while maintaining an open throat. This is caused by him often letting his larynx raise as his throat closes, making his voice become much tighter and squeezed in overall tone production. Thus straining his voice whenever he sings notes above A4, as heard by the Bb4’s in “나였으면“, “못해“, “아름다운 우리 나라“, and C5’s in “야생화.” On occasion, he has shown a more opened approach above A4, such as the Bb4 in “Love in the Ice“, but that is a rare occurrence. He tends to also lack a proper balance of chest and head voice the higher he sings in his mix, becoming tighter and headier the higher he sings.
His upper register is the area of his voice where most improvement can be heard. Early on when 100% debuted and prior, Rokhyun would often use an airy and somewhat throaty falsetto when singing above his mixed voice. However as time went on, he started to opt for a more connected and fuller approach as he learned to support and produce a connected head voice. The contrast can especially be heard by comparing his falsetto in “Rolling in the Deep“, “Missing You” and “Go On Girl“, with his head voice where support is present up to C#5, as heard in “추억은 사랑을 닮아“, “사랑을 모르다“, “눈의꽃” and “메리크리.” Above C#5, he tends to become loud and pushed, as he’s unable to control the volume of his voice while maintaining the proper amount of air supply to support his voice. This results in a strained and tight head voice, which can be heard by the F5’s and G5’s in “너와 나“, G5’s in the high note battle in Weekly Idol, and Bb5’s in the high note battle with Niel and Sungjae.
His overall technique has shown great consistency over the years, especially with his ability to produce resonance as well as his good breath control and dynamics. He also favors using a more natural vibrato and has shown that he’s able to choose when to sing with more opened versions of vowels in order to keep his singing full and better projected, as heard in “Love in the Ice.” He does tend to have issues with nasality that can be a bit overdone when singing more pop oriented songs, but he’s shown more than enough times that he can produce a more opened sound at will, while manipulating his tone and placement well.
Rokhyun is a vocalist who’s lucky enough to have been given the chance to appear as a member of 100% on shows like Immortal Song 2, where he’s been given the opportunity to showcase his vocal ability and gain recognition as a vocalist and artist. For future improvements, exploring the rest of his range along with being given the chance to appear on TV shows such as King of Mask Singer could further help him develop himself as a vocalist and give him the encouragement needed to realize his full potential as he ages and matures.
Rokhyun’s overall ability to harmonize with every other member of 100% is one of the things that helps them stick out as a more well balanced group vocally. Even if not everyone may have the same level of development vocally, all the members know how to blend their voices and match each other quite well, as heard in “야생화.” Musically speaking, Rokhyun’s musical ideas and additions to many of his songs don’t often come out right. His most common way of embellishing songs while adding his own flavor to them is adding runs, which are often unclear and pitchy, which may at times come out right in pitch but could always be more precise. This can be heard in “Rolling In The Deep.”
Label (Type of Vocalist)
MH Vocalists: Mid-Range Head Voice Vocalists
MB Vocalists: Mid-Range Belters
Best Vocal Performance(s)
Analyzed by Ahmin (Kitsunemale)