How to Sing Like Sohee (RIIZE): Vocal Range, Signature Tone & the Technique Behind It

Singing like Sohee is less about matching a specific pitch and more about mastering two specific skills: a smooth chest-to-mix transition that keeps his high notes clean and unstrained, and the flexible pitch control behind his R&B-style vocal riffs and ad-libs. Once you understand the mechanics behind his sound, RIIZE's catalog becomes trainable — even if your voice type is nothing like his.

Safety note: None of the techniques here should cause throat soreness, a pressed feeling in the larynx, or hoarseness lasting beyond 24 hours. Clean high notes come from breath support and registration, not from forcing chest voice upward or squeezing the throat. If you feel strain, reduce volume and rest. Consult an ENT specialist for hoarseness lasting more than two weeks.

Sohee's Vocal Profile

RIIZE debuted in 2023, so Sohee's catalog is still relatively small and no independently verified numeric vocal range has been published for him. Rather than citing a specific octave span, it's more accurate — and more useful — to anchor on documented moments: his high note is frequently cited as a standout point in "Fly Up" and "Love 119," and he has described the keys in "Boom Boom Bass" as noticeably higher than the group's usual range, in his own words.

A note on accuracy: with a young discography and limited independent vocal analysis available, any specific range figure you encounter online should be treated as unverified rather than confirmed. This guide focuses on what can be observed directly from the recordings — how specific passages are produced — rather than a disputed number.

His stylistic signature has two clear pillars:

• Clean, unstrained upper register — bright, clear high notes delivered without audible pushing, even on passages he has described as sitting higher than the group's typical range.
• R&B-style riffs and ad-libs — melodic flourishes layered onto choruses and outros that add movement without disrupting the core melody, reflecting an R&B-leaning vocal specialty.

The contrast between his controlled top notes and his flexible, riff-driven phrasing is what gives his sections their pop-friendly, refreshing color — well suited to the airy choruses common in RIIZE's discography.

Sohee's Signature Songs — by Vocal Challenge

Approaching his songs by what they demand rather than by popularity gives you a training order. Transpose any of these to a key that fits your range.

Start at the top of the table and move down only as each technique becomes reliable. The peak note in "Fly Up" is the destination, not the starting line.

The 3 Techniques Behind Sohee's Sound

Clean, unstrained upper register

This is the production behind his standout high-note moments in songs like "Love 119" and "Fly Up" — a light but complete cord closure that stays clear without the pressed, effortful quality that comes from pushing chest voice upward. The most common mistake when imitating this is trying to match volume before registration is stable, which produces strain instead of the clean tone being chased. Train breath support first — the singing breathing tips guide covers the diaphragmatic foundation this depends on.

The chest-to-mix transition (handling "higher than usual" keys)

Sohee has described the keys in "Boom Boom Bass" as noticeably higher than the group's typical range, yet the delivery stays clean rather than strained under pressure. What makes that possible is a smooth passaggio — the voice moving from chest through mix into head without an audible break. This is the highest-leverage skill in his repertoire, and it is built through repeated transition-zone drills at moderate volume rather than by singing louder. The K-pop mixed voice song analysis breaks down how this transition shows up across other idol vocal lines.

R&B-style vocal riffs and ad-libs

Layered onto choruses and outros, Sohee's ad-libs add melodic movement without changing the core melody — a hallmark of R&B-leaning vocal styling. Producing a clean riff requires quick, controlled pitch movement across a narrow interval, which depends on stable breath support and flexible register awareness rather than raw range. The common mistake is attempting to riff before the underlying scale movement is secure, which produces pitchy, unclear ad-libs instead of the intended melodic flourish. Scale and interval drills at a slow tempo build this foundation before you add it to a full phrase.

How to Train Toward Sohee's Style

Step 1 — Find your comfortable key first

Run a range test from your lowest to highest comfortable note before attempting any RIIZE song. Sohee's parts are often reported as sitting in a bright, high-tenor range, but almost every song works transposed to fit your own voice. Singing in a fitting key prevents the strain that comes from chasing an unverified "original" pitch.

Step 2 — Study the tone target, not just the melody

Pick one song and listen three times: once for melody, once for where the voice sits brighter versus more relaxed, and once for breath audibility. Identify which production a phrase uses — softer mid-register or clean bright top — before you sing it. This makes your practice a technical target instead of an impression.

Step 3 — Build breath support before chasing the high notes

A clean, unpushed top note depends on steady diaphragmatic breath support feeding a controlled glottal closure. In Bloom Vocal, the breath exercises and C-1 (Lip Trill / breath onset) build this foundation. Pitch instability and strain on high notes almost always trace back to inconsistent breath delivery, not the note itself.

Step 4 — Train the chest-to-mix transition for the upper register

The high notes highlighted in songs like "Fly Up" and "Love 119" rely on a smooth passage from chest into mixed and head voice, not pushed chest volume. Work C-3 (Mix Voice Foundation) and C-4 (Chest-to-Mix Transition) at around 60 percent volume so the coordination is trained before power is added. This is the mechanism behind handling "higher than usual" keys cleanly.

Step 5 — Run an AI feedback loop on a single phrase

Choose one 8-bar passage, record it, and use Bloom Vocal's AI coaching to score pitch accuracy, breath support, and register consistency. Compare playback to the original for registration first, timbre second. The AI surfaces habits — like chest-pushing on the upper passaggio — that are difficult to detect by self-listening alone.

Check Your Cover with AI

Imitating a tone by ear has a ceiling: you can't reliably hear your own register breaks or pitch drift while you sing. Upload a recording of a Sohee passage — the softer verses of "Memories" or the climb in "Fly Up" — and Bloom Vocal's AI scores your pitch accuracy, breath support, register transitions, rhythm, and expression on a 1–5 rubric, then recommends the specific exercises to fix your weakest area first. It turns "that didn't sound right" into "your transition from chest into mix lost support — drill C-4."

For a broader framework on how idol vocal styles map to trainable techniques, see the K-pop idol vocal style analysis. If you're working through other boy group lineups, the Taeyong, Doyoung, Mark (NCT), and Jungkook guides cover neighboring vocal styles and techniques.

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References

• Sadolin, C. (2000). Complete Vocal Technique. Shout Publishing. [Vocal modes and the laryngeal/resonance configurations behind clean, edge, and mixed productions used in high-tenor pop delivery.]
• Titze, I. R., & Verdolini Abbott, K. (2012). Vocology: The Science and Practice of Voice Habilitation. National Center for Voice and Speech. [Breath support and cord closure mechanics across chest, mixed, and head register; subglottal pressure in supported high-pitch phonation.]