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Turns recordings and YouTube links into sheet music, guitar tabs, MIDI and MusicXML
Klangio does audio-to-notation: record, upload a file or paste a YouTube link and it detects the notes, then exports PDF sheet music, quantised or raw MIDI, MusicXML or Guitar Pro files. It covers piano, guitar, drums, vocals, violin and wind instruments through both a single Transcription Studio and instrument-specific apps such as Piano2Notes, Guitar2Tabs and Drum2Notes, plus Scan2Notes for photographing printed scores. An edit mode with piano-roll and score views lets you fix what the model got wrong before export, and a DAW plugin ships as VST3, AU and standalone. Klangio GmbH is based in Karlsruhe and was founded in 2018 by Sebastian Murgul and Alexander Luengen.
Studio Pro is $8.49 a month when billed annually, or $19.99 month to month, for unlimited transcriptions plus the VST3/AU/standalone plugin. Free demo transcriptions and a preview mode that plays back MIDI without exporting. 14-day money-back guarantee. A separate Klangio API is sold for developers.
Use tool ↗Klangio is the most complete audio-to-notation stack on the market: browser studio, per-instrument apps, a DAW plugin and an API, with exports that open in MuseScore, Sibelius, Finale and Guitar Pro. The edit mode matters, because polyphonic transcription still misses notes and you will be correcting output rather than printing it. Annual billing is less than half the monthly rate, which is a real commitment for a tool you may use in bursts.
Watch out: The advertised $8.49 is the annual plan divided by twelve; paying month to month is $19.99.
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