Help & Support
Search the FAQ, or reach us directly — we usually reply within a day.
Getting started
Hit Sign In on the top right and pick Email, Google, Apple, or Facebook. We create your account on first sign-in — there is no separate sign-up step.
Upload your file, then choose Stem Splitter in the workspace. We separate drums, bass, piano, and vocals so you can process each segment on its own.
Account
Open the account menu in the top right and choose Profile. You can change your display name, avatar, and email there.
Under Account → Connected accounts you can link or unlink Google, Apple, and Facebook. Keep at least one sign-in method connected.
Account → Delete account. This permanently removes your uploads, scores, and minute balance — it cannot be undone.
Billing & minutes
One billed minute equals one minute of your source track length, rounded up — regardless of how many instruments you export from it.
Minutes come off your balance only when a job completes successfully. Jobs that fail cost nothing.
Monthly plan minutes reset each billing cycle and do not roll over. One-time top-up minutes never expire.
You are not charged any minutes. Retry from your history — re-encoding the source file usually fixes it.
Buy a one-time top-up from the Pricing page, or upgrade your plan for a higher monthly allowance.
Unused top-up minutes are refundable within 14 days. See the Refund Policy for the full terms.
Account → Billing → Manage plan. Changes apply on your next cycle; cancel anytime and keep access until the period ends.
Uploads & formats
Up to 32 MB per file.
MP3, WAV, FLAC, and OGG.
Every completed transcription gives you PDF, MusicXML, and MIDI.
Transcription quality
Use studio-quality recordings, isolate the instrument where you can, and pick the right kit mapping before processing.
They can, but results vary — studio-quality recordings produce the best notation.
Yes. We detect tempo maps and time signatures, including odd meters, though very fluid rubato is harder to track.
MusicXML for editing in notation software, MIDI for DAWs, and PDF for reading or printing.
Publishing & Explore
Open a finished score and hit Publish to share it on Explore.
Public appears on Explore and in search. Unlisted is reachable by link only. Private is visible to just you.
You choose: allow downloads for everyone, for signed-in users only, or for no one.
Open the score → Publishing → Unpublish. It is removed from Explore immediately.
Your public scores (and unlisted ones opened via link), your display name, and your avatar.
Reach us directly
Three ways to talk to a human. Pick whatever's easiest.
Best for users in China — scan the code to add us on WeChat.

