Replace every stem.
Make it yours.
Pan's Echo is a platform for musicians, producers, vocalists, and DJs. Use the free desktop app (macOS today; Linux & Windows coming) to split any song into its stems — entirely offline, nothing leaves your computer. Record your part, upload it to an echo, and collaborate with others until every track is played by a real person.
From practice to performance
A complete workflow connecting your desktop studio to a global community of musicians.
Local AI stem separation
The PansEcho desktop app separates any song you own into vocals, drums, bass, guitar, and more — entirely on your device, using AI. No audio ever leaves your machine.
- Runs fully offline — no cloud processing
- Up to 9 stems: vocals, drums, bass, guitar, piano, keys, sax, strings, FX
- 24-bit / 48kHz FLAC output for studio quality
- Supports iTunes + Apple Music purchases
Stem Tracks
The Pantheon
Every stem has a name. Every name has a domain.
The desktop app pulls these voices apart. The site gives them back to people who can speak them.
the voice that names things
The first voice. The one a song reaches for when it wants to be remembered. Calliope's stems are the lyric and the breath in the lyric.
the chorus, the long thread
Polyhymnia is the harmony you didn't notice held you up. Backing vocals are the room agreeing.
rhythm, conflict
Ares is what makes the song move and what makes it argue with itself. Drums are not the floor; they are the thing pacing on the floor.
the floor, the dark
Erebus is the floor — primordial darkness, the thing the song stands on. Bass is what you feel before you hear it.
melody, light
Apollo is the line of light a melody draws across the room. Guitars argue with Calliope about who is the voice.
memory, return
Mnemosyne is memory. Piano is what the song sounds like after you have forgotten it once and remembered it again.
the leftover, the bridge
Iris carries messages between gods. The 'other' slot is whatever the song needed that no other deity claimed — a horn, a pad, a bell.
Three steps to collaborative music
From a song you love to a fully original recording owned by your echo.
Buy, Import & Separate
Purchase a song on iTunes or Apple Music. Import it into the free PansEcho desktop app (macOS available now; Linux & Windows in 2026) and separate it into stems — entirely offline.
Practice & Record
Record your part against isolated stems — any instrument, voice, or electronic performance. Upload your lossless recording to the echo when you're done.
Collaborate & Complete
Echo members vote on each contribution. When all stems are replaced, you have a fully royalty-safe cover — zero copyrighted audio ever stored.
No copyrighted audio. Ever.
PansEcho never hosts, transmits, or stores any original copyrighted audio. Stem separation runs 100% locally on your machine. Only your original recordings reach our servers.
- Local-only stem separation via PansEcho desktop app
- Only user-recorded originals are uploaded
- Click tracks generated from BPM/downbeat metadata only
- DMCA takedown process for violations
- Upload attestation: 'I own a legal copy of this song'
100% Original Output
Every completed echo produces a song made entirely of original recordings. No AI generation, no samples — just real musicians playing real instruments.
Simple pricing
Free to start. Upgrade when you're ready.