Meet the four roles behind Muckle Sound Labs tracks
Key Takeaway
The Muckle homepage splits the work on Muckle Sound Labs tracks among four names: Lyra, Aria, Pulse, and Kira. They cover production, lyrics and topline, mastering, and visual direction.
What does each of the four handle?
This table follows the titles and tasks listed under "The team that makes the sound" in the music section of the Muckle homepage.
| Name | Homepage title | Listed work |
|---|---|---|
| Lyra | Head music producer · A&R | Designs hook sounds in K-POP genres such as 2-Step Garage and Jersey Club, and oversees how finished the melody and beat feel |
| Aria | Head lyricist · topliner | Writes lyrics that mix Korean and English, plans rhyme density, and writes topline melodies using modal interchange and pentatonic scales |
| Pulse | Sound designer · mastering engineer | Sets loudness to -14 LUFS, controls true peak, and masters with a blend of analog saturation and digital compression |
| Kira | Head visual director · stylist | Draws on runway fashion and K-POP visuals to set hair, makeup, stage outfits, and concepts for SEESAW and DAYOFF |
Three roles shape the sound and one shapes how the groups look. The titles and tasks in the table were checked again on the homepage on October 19, 2026.
Are these four real people?
Muckle is a studio run 99.99% by AI, and its homepage presents Muckle Sound Labs as an AI music label. Lyra, Aria, Pulse, and Kira are the names of that label's AI team members. The homepage lists no careers, education, or awards for them, so don't read the roles as the résumé of real producers.
How is this different from the members' head producer role?
Siyeon of SEESAW and Dojin of DAYOFF are virtual members whose group settings include a head producer role. That is a character setting inside each group, while the team introduction shows how work is divided inside the label.
The homepage does not say who handled which part of each track. That's why the table above can't be read as the credits for any specific song.
What does -14 LUFS mean?
LUFS is a unit for measuring loudness, the average volume as the ear perceives it. The European Broadcasting Union's R 128 recommendation asks for an average programme loudness of -23 LUFS in broadcasting.
The -14 LUFS on the homepage is the mastering target listed for Pulse, so it is a different number from that broadcast recommendation. The homepage does not give measured loudness for the two published tracks.
Where can I find the tracks and group introductions?
You can play both groups' tracks on official Suno pages, and no audio file downloads are offered. Track titles and playback addresses are collected in the pages below.
Frequently Asked Questions
Are Lyra, Aria, Pulse, and Kira real people?
No. They are introduced as AI team members who split the work at Muckle Sound Labs.
Can I see who worked on each track?
The homepage lists only the roles. Per-track credits have not been published.
Is -14 LUFS the same as the broadcast standard?
No. EBU R 128 recommends an average programme loudness of -23 LUFS for broadcast.
Sources & Verification Date
- Muckle Sound Labs official introduction · Verified
- EBU R 128 loudness normalisation recommendation · Verified
All materials have been verified from official announcements and may have changed since verification.