[Taking on a song with a wide vocal range] An S-class challenge track
Have you ever had a song you wanted to sing at karaoke, only to give up because the vocal range was too wide? Songs that span three octaves or feature virtuosic techniques rated at difficulty S are certainly challenging to master.
But if you understand their appeal and learn some vocal tips, you’ll find more joy in taking on the challenge.
In this article, we focus on popular songs known for their wide ranges and highlight key points to keep in mind when singing them at karaoke.
Use it as a guide to make your karaoke life even more fulfilling!
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- [Challenge] A compilation of Vocaloid songs that are difficult to sing
[Taking on Songs with a Wide Vocal Range] S-Rank Challenge Songs (21–30)
Flamejoōbachi
Queen Bee is a rock band highly acclaimed for their original musicality.
Artists with high-pitched voices are fairly common in the Japanese music scene.
However, Queen Bee’s vocal lines don’t just sit in a high range; they demand a wide span from very low to extremely high.
Among their works, the particularly challenging piece is Kaen (Flame).
With an extremely high chorus that uses falsetto and verses (A and B sections) that drop into low tones, the contrast is stark, making its difficulty indisputably S‑class.
Kaikai KitanEVE
Eve is known as a singer-songwriter and composer.
The song he wrote specifically as the opening theme for the anime Jujutsu Kaisen is Kaikai Kitan.
The track captures the protagonist’s inner turmoil and conflict, which is why the pitch shifts so dramatically.
It also features the driving, fast-paced melody typical of shonen anime openings.
The sense of speed comes not only from the quick melody but also from the gradually rising key.
With its rapid tempo and drastic pitch changes, it goes without saying that the song is quite difficult.
MesmerizerHatsune Miku / Kasane Teto
Satsuki, a Vocaloid producer known for upbeat tracks, has released a new song, Mesmerizer.
Featuring Hatsune Miku and Kasane Teto, it showcases Satsuki’s signature style with a lively, highly danceable melody throughout.
The piece also includes extremely high vocal ranges.
With its fast-paced vocal lines—typical of Vocaloid and difficult for breathing—very few human singers could perform it perfectly.
There’s also a key change in the latter half, so if you’re confident in your high range and lung capacity, give it a try.
Utakata LullabyAdo
Utakata Lullaby is a blast, with vocals that rhythmically shift colors over a thrilling sound.
It was featured as an insert song in the movie ONE PIECE FILM RED.
The moment you hear it, you can’t help but be stunned—how is it even possible to sing this? Beyond the wide vocal range and pitch fluctuations, it feels like there are many different characters within a single track.
Ado’s multifaceted expressiveness is on full display.
How naturally you can hit the frequently occurring hi D# notes and nail that rock-flavored delivery will likely be key.
When you can pull this song off, its coolness really stands out! Since it’s generally high in pitch, try adjusting the key and give it a challenge!
UNDEADYOASOBI
YOASOBI’s new song “UNDEAD.” Released as a theme song for the Monogatari Series, it emphasizes electropop elements even more than their usual tracks.
The trickiest aspect of this piece is, above all, the intense leaps in pitch.
The vocal range is quite wide, but even more challenging is the switching between chest voice and falsetto.
Since the song demands considerable pitch control, it’s best to listen closely and thoroughly before attempting it.
LuluAdo
Ado’s hit number “Ruru.” It’s a song that vents frustration with the world’s absurd rules, marked by an extremely hard-edged musical style.
This piece also spans a very wide vocal range.
While many people can handle songs that are simply high, the standout feature here is how raw and aggressive the high parts are.
It doesn’t just demand pure high notes; it calls for a wide range of expression—like falsetto blended with shouts—so solid fundamental vocal skills are required.
If you’re confident in your singing ability, be sure to check it out.
unravelAdo
The song “unravel” by TK from Ling tosite sigure.
Although it was released in 2014, it drew attention when Ado covered it in 2023 and saw a revival hit in 2024.
The piece is known for having a very wide vocal range.
It contains many passages in the high register that demand a stable falsetto, and beyond that, it even features screams akin to death growls partway through.
Breathing is also challenging, making it a song that requires strong fundamental vocal technique.