Short answer: AudioPrism is a Windows-only desktop app that, according to its own page, splits a song into stems and exports MIDI on your own computer. For a piano learner the stem and slow-down side looks genuinely useful for practice. The auto-generated MIDI is a starting sketch that you have to check by ear, not a finished score. We have not tested it ourselves. The author of this site uses a Mac, and a licence key the vendor offered has not been used yet. Everything below comes from the vendor’s official pages and neutral sources, checked on 1 October 2026.
Quick verdict box
- What it is: a one-time-purchase Windows program for stem separation and audio-to-MIDI, with a piano learning mode.
- Price (vendor page, 1 Oct 2026): $59.99 launch price, listed against a regular $79.99. A news item says the launch price runs to 31 October 2026.
- Our status: not tested. No hands-on claims on this page.
- Biggest caveat: no Mac, phone or browser version is mentioned anywhere we looked.
Who it is for, and who it is not for
It may suit you if you use a Windows PC, you already learn songs by ear or from recordings, and you want to mute or isolate parts so you can play along. It may also suit you if you like the idea of paying once rather than subscribing.
It is probably not for you if you are on a Mac, iPad or phone, if you want guided lessons that teach you to read music (see our ranking of piano learning apps), or if you expect to press a button and receive sheet music you can play without corrections.
What the vendor says it does
The AudioPrism site describes a workflow of pasting a link and getting the audio file, the stems and a MIDI file, then learning the piece in a piano mode. It says processing runs locally on your machine, with no usage metering or caps. A Rekkerd news item dated 17 September 2026 adds that the stem separator uses Demucs on the user’s GPU and that a component called KeyPrism builds a piano transcription. We are repeating these descriptions, not confirming them.
Facts table
| Item | What we found | Source (checked 1 Oct 2026) |
|---|---|---|
| Platform | Windows. The terms call it “downloadable Windows audio software”. | AudioPrism terms page; Rekkerd |
| Price | $59.99 launch price, $79.99 regular. One-time, lifetime updates. | AudioPrism home page |
| Launch price end date | 31 October 2026 | Rekkerd only (not seen on the vendor page) |
| Licence | Personal and commercial creative use; licence key; no resale or sublicensing. Number of machines not stated. | AudioPrism terms page |
| Refunds | Request within 14 days by email for purchase or billing problems, duplicate purchases, activation problems, or the app not working as expected after reasonable support. May be declined for abuse or repeated purchase/refund cycles. | AudioPrism refund page |
| Processing | Local, on your machine | AudioPrism home page |
| System requirements (Windows version, RAM, GPU) | Per the vendor’s email to us (1 Oct 2026): Windows 10 or 11, 64-bit, no Mac version. An NVIDIA GPU is used automatically if present; otherwise it runs on the CPU, more slowly. One-person licence. Not published on the site. | Home, terms, refund pages; 404 on /faq |
| Accuracy claims | None published | AudioPrism home page |
What stem splitting and MIDI extraction can and cannot do
Stem splitting separates a finished mix into parts such as vocals, drums, bass and “other”. Demucs, the open-source model Rekkerd says AudioPrism uses, offers a standard four-stem model and an experimental six-stem model that adds guitar and piano. Its own documentation warns that the piano source “is not working great at the moment”, and the project’s repository was archived in January 2025. That does not tell us what AudioPrism’s own results sound like, but it is a fair reason to expect imperfect piano isolation, especially when guitars, synths or strings overlap the piano range.
Audio-to-MIDI is harder than it looks. Research overviews of automatic transcription describe notes that overlap in time and share harmonics, which makes simultaneous notes (especially octaves) hard to tell apart, and note endings that are hard to detect. A 2025 multi-instrument transcription challenge reported accuracy dropping as more instruments were present. Spotify’s open-source Basic Pitch says it supports polyphonic instruments but “works best on one instrument at a time”. Piano chords, held pedal notes and fast runs are exactly where errors tend to cluster.
In practice, expect a MIDI file with the right general shape and some wrong, missing or extra notes, and rhythms that may be rounded oddly. Treat it as a draft.
Practical value for a learner
- Isolating or muting parts. If a stem is clean enough, you can hear the piano part more clearly, or remove it and play along with the rest.
- Slow-down and loop practice. Working on a hard bar at 70 percent speed is a proven practice habit. Check whether AudioPrism includes speed and loop controls; we could not confirm this from the pages we read.
- MIDI as a map, not an answer. Load the MIDI into free notation software and compare it with what you hear. Fix the wrong notes by ear. That correction process is itself ear training.
- Do not skip the basics. Reading rhythm and hand position still come from lessons or a method. Our guide to learning piano as an adult covers the order we would follow.
Alternatives, compared factually
| Tool | What it does | Platforms | Price | Source (1 Oct 2026) |
|---|---|---|---|---|
| Moises | Stem separation (its page lists vocals, drums, bass, guitar, keys and more, 27 stem types), speed adjustment, chord detection, lyric transcription | Web, desktop, iPhone, iPad, Android | Free tier with limits; paid plans exist. Prices UNVERIFIED (shown only after login). | moises.ai |
| Transcribe! | Specialised player: slows music without changing pitch, loops, markers, spectrum view. It states it does not produce notation or MIDI for you. | Windows, Mac, Linux | 30-day free evaluation, then paid. Price not checked. | seventhstring.com |
| Basic Pitch (Spotify) | Free open-source audio-to-MIDI converter, best on one instrument at a time | Browser demo; Python library | Free | basicpitch.spotify.com; GitHub |
If you are on a Mac, Moises or Transcribe! are the only options in this list that the vendors say run there. If you just want to learn songs with feedback and no recordings involved, apps like those in our Skoove vs Simply Piano comparison or our list of free piano apps are a different, simpler route.
Honest limits of this page
- We have not run AudioPrism. The author uses a Mac, and the vendor-offered licence key is unused.
- We cannot say how accurate its piano stems or MIDI are.
- The vendor told us it needs Windows 10 or 11 (64-bit) and runs faster with an NVIDIA GPU; we have not checked memory needs or tested it.
- The October 31 price end date comes from a news site, not the vendor.
- Terms and prices change. Check the vendor pages before buying.
FAQ
Does AudioPrism work on Mac?
Its terms describe Windows software and Rekkerd lists Windows. We found no Mac version mentioned.
Can I get a refund?
The refund page allows requests within 14 days for the reasons listed in the table above, including the app not working as expected after reasonable support. Refunds are not automatic.
Will the MIDI be playable straight away?
Do not count on it. Research on piano transcription shows overlapping notes and note endings are hard problems, so check the output by ear and fix it.
Is it legal to split any song?
The vendor says it is for audio you have the right to use and that it does not supply music. This is not legal advice; check the rules for the recordings you use.
Are there affiliate links here?
Not to AudioPrism or the other tools named here: those links are plain links and we earn nothing if you click them. The Pianoforall button at the bottom of every page on this site is an affiliate link.
Related: Simply Piano review and more in Reviews & Comparisons.