Results Disclaimer

What a Ky result is, what it isn't, and why you must check it yourself.

Effective 25 October 2026 · version 2026-10-25 · Part of the Terms of Service.

What a result is

A Ky result says, for the file you gave us, whether a run of notes resembles a run of notes in a transcription in our catalogue — or in another file of yours, when you compare files against each other — how long the resemblance is, how close, in which bars, and how common that material is across the catalogue. It is produced by a fixed, deterministic method: the same file gives the same result and the same numbers for the same catalogue and engine version. The plain-English explanation is written from those numbers; a language model running on our own hardware is sometimes used to rephrase it, instructed only to rephrase, and its output is checked against the numbers before use.

What a result is not

• Not a legal opinion. Ky does not decide whether anything is copyright infringement, in any country. Infringement depends on things Ky cannot see: who created what first, whether material was licensed, sampled, interpolated or independently created, what counts as protectable expression where you are, what a particular court has held, and much else.
• Not complete. The catalogue is built from publicly available MIDI transcriptions. Most music ever written is not in it, and the same song can appear in it more than once. A "clear" result means we found nothing of note in what we have, nothing more.
• Not exact. Transcriptions contain errors; labels (titles, artists, years) can be wrong; our reading of a melody can differ from a musician's. Dates are known for a minority of works, so "prior art" counts can over- or under-state how old a figure is.
• Not a prediction. Ky does not predict what a court, a rights holder or anyone else would decide.

Result words

• Clear — no passage that is both significant and specific to another work.
• Worth a look — something short, commonplace, weak or transformed resembles another work. Listen to both passages side by side.
• Likely shared material — a substantial passage matches a specific work and the material is not commonplace. The strongest thing we can say is where to listen.
• Looks like a version — your file and a catalogued transcription (or another of your files) appear to be the same piece of music: a cover, an arrangement, a remix, or the same song under another name. If it is yours, that is expected.

Before you rely on it

Listen to both passages yourself. Check who the other work belongs to and when it was made. If anything commercial, contractual or legal turns on the answer — releasing a track, signing a deal, responding to a claim or making one — get advice from a qualified lawyer or a forensic musicologist. Ky can show them the evidence record; it cannot replace them.

No liability for reliance

To the fullest extent permitted by law, Ky is not liable for any loss arising from reliance on a result, including a resemblance Ky did not detect or one it reported that proves immaterial. See the Terms of Service, section 8.