Nameryn
Klangio
Turns recordings of piano, guitar, voice, drums and other instruments into sheet music, tabs and MIDI. AI-powered tool, with a free plan; runs on web, mobile, plugin. The stack builder's rules name it for audio to notes, but it is not picked until its prices are confirmed on Klangio's own page.
What it is known for
- Strengths: audio to sheet music, tabs and MIDI; polyphonic note detection for chords and harmonies; edit mode with piano roll and score views.
- For: music teachers, producers, composers, transcribers, instrumentalists and bands.
- Runs on: web browser, iOS, Android, DAW plugin and API.
- Learning curve: easy: built for all skill levels, three simple steps.
- Works with: PDF, MIDI, MusicXML, Guitar Pro export, MuseScore, Sibelius and Finale, Logic Pro, Ableton and Cubase and FL Studio.
Read on October 9, 2026 from klang.io.
Plans and prices
| Plan | Price | What you get |
|---|---|---|
| Free | Free | Demos up to 20 seconds, non-commercial only |
| Studio Pro | $19.99/mo | 50 transcriptions a month, up to 15 minutes, PDF, MIDI, Guitar Pro and MusicXML |
| Ultimate | $29.99/mo | 250 transcriptions a month, several instruments at once, a plugin for your studio program |
Not confirmed on Klangio's own page. On October 19, 2026, klang.io/pricing refuses the fetch; the studio page shows a sale banner and no plan prices. The figures above were read on klang.io/transcription-studio on October 6, 2026 and are kept for reference only; the stack builder does not pick Klangio until they are confirmed.
Where the rules name it
The builder reads each job's rules from the top and takes the first step whose conditions hold and whose plan fits the money left. Klangio is named in these steps:
- Audio to notes, step 4 of 5, when at least $24 is left for it: Studio Pro ($19.99/mo); the step also names ScoreCloud, and the best score takes it.
- Audio to notes, step 5 of 5, otherwise: Studio Pro ($19.99/mo); the step also names AnthemScore, and the best score takes it.
The rules are public in stack-rules.json, and how the stack builder scores explains the tie-break.
Alternatives the same rules name
- ScoreCloud: A notation app that turns played or sung audio and MIDI into notation and lead sheets. From free.
- AnthemScore: Finds the notes, beats and instruments in a recording and writes editable sheet music, tabs, MusicXML and MIDI. From $39 once.
Signals and what people say
- Hacker News, 30 days to October 7, 2026: 0 stories
Change log
- October 6, 2026: plans and prices first recorded from klang.io/transcription-studio.
Logo: Nameryn monogram (no free mark on file), CC0 1.0.