VO01
Private beta · Sevenier by Bisesvar
Pull the instruments apart. Keep the feeling.
Turn a finished mix into seven editable stems—vocals, drums, bass, guitar, piano, strings and everything else.
WAVMP3M4AFLAC
Your music stays private during the beta.
One song. Seven ways in.
Every part gets its own space.
Practice against it, sample it, rebalance it or hear what was hiding underneath the mix.
DR02
Drums
BA03
Bass
GU04
Guitar
PI05
Piano
ST06
Strings
OT07
Other
7 LAYERS · ONE MUSICAL WHOLEInside the music · Sevenier studies
Hear every layer leave—then feel the whole piece return.
These studies are here to spark your next idea—and pull you deeper into the music as the model separates it. Step back from the sound, watch the individual parts reveal themselves, and then see how they form the whole. We hope the examples we picked for you create that unmistakable eureka moment.
Continue into the listening journey →Inside the music
Hear every layer leave—then feel the whole piece return.
These studies are here to spark your next idea—and pull you deeper into the music as the model separates it. Step back from the sound, watch the individual parts reveal themselves, and then see how they form the whole. We hope the examples we picked for you create that unmistakable eureka moment.
Explore inspirations ↗08 MODEL STUDIESCHOOSE A LISTENING STEP
REAL GET LUCKY STEMS · SOLO · BUILD · REUNITEEnter the listening journey →
No session files required
From final mix to working stems.
The separation pipeline listens in stages, then packages every result as a full-length, time-aligned audio file.
Drop your track
Upload a common audio format up to 100 MB.
We pull it apart
Specialized models isolate rhythm, voice and instruments.
Take the stems
Preview each part and download exactly what you need.
Your first separation
Bring the eureka moment into your own music.
Start with a track you are allowed to use. Sevenier keeps every returned layer aligned, so you can pull the sound apart and bring it back together without losing your place in the music.
01
CHOOSEBring in your track
02
SHAPEPick the layers you need
03
SEPARATELet the model listen
04
DISCOVERRebuild the whole
Live private beta
Open up a track you know by heart.
The same seven colours from the record become seven synchronized channels here. Choose what matters, let the model listen, then move between a single detail and the complete arrangement.
- ✓ Full-length, time-aligned stems
- ✓ Original sample rate preserved
- ✓ No training on beta uploads
Checking GPU service
STEP 01 / 04Drop an audio file here
or click to browse · WAV, MP3, M4A, FLAC
01PRIVATEYour beta upload is not used for training.02SYNCHRONIZEDEvery result keeps the original timeline.03LIVE MODELProcessing time varies with track length.
Choose outputs
By uploading, you confirm you have permission to process this audio.
About us
Curiosity, tuned into possibility.
Bisesvar brings art and technology together. Sevenier is our tool for uncovering what is already in the music.
We are musicians at heart, driven by a restless curiosity to understand how music truly works—from the smallest texture to the feeling created by a complete song.
That passion led us to build tools that let artists hear inside their own music. By revealing every voice, rhythm and instrument, we make it easier to explore an idea, refine it and discover what the song can become.
Our purpose is simple: remove the technical barriers between an artist and the sound they imagined. When every layer becomes accessible, artists are freer to show their full potential—and bring other people closer to exactly what they dreamed of hearing.
OUR BELIEFTechnology should reveal the artist, never replace them.