Klangio

Klangio is an AI-powered music transcription suite that turns sound into written music. You upload a recording, paste a YouTube link, or play straight into your microphone, and its machine-learning engine analyzes the audio to produce sheet music, guitar TABs, MIDI and MusicXML files in seconds — work that traditionally consumed hours of careful listening and manual notation. The engine detects melodies, chords, harmonies and rhythm, including polyphonic passages where several notes sound at once, and it transcribes not just solo instruments but full mixes, separating what each instrument plays. Unlike song-identification apps that match audio against an online database, Klangio genuinely listens to what is being played and writes down the notes it hears — melody, chords and rhythm independently. The same engine can also produce lead sheets with melody lines and chord symbols for songwriting, band rehearsals and jazz charts, and works as a key finder by analyzing a track's harmonic structure. The product family from Klangio GmbH, developed in Karlsruhe, Germany, covers nearly every instrument and workflow. Dedicated apps specialize per instrument: Piano2Notes converts piano performances and complete songs into two-hand piano scores; Guitar2Tabs produces guitar and bass TABs; Sing2Notes writes vocal melodies into notes; Drum2Notes captures drum parts as percussion notation; Violin2Notes and Wind2Notes serve strings, brass and woodwinds. Each model is trained for its instrument's specific playing techniques — pedaling, strumming, vibrato, drum articulation — and the engine is refined continuously. Transcription Studio is the all-in-one flagship: it turns whole songs into separate, editable parts for 25+ instruments — piano, guitar, bass, drums, vocals, strings, winds and more — in one browser workspace, with modes for solo instruments, full songs, rock, ensembles, arrangements and lead sheets. The same engine ships as a Transcription Plugin that runs inside DAWs like Cubase, Logic Pro, FL Studio and Ableton with MIDI-focused output, and Scan2Notes digitizes printed sheet music while Melody Scanner generates piano arrangements from full songs. For developers, the Klangio API exposes transcription, source separation, beat tracking, strum recognition and chord recognition endpoints, and a bulk transcription service handles 100+ track projects. Every app shares the same simple workflow. First, add music: record your performance, upload an audio file (MP3, WAV, MP4, MIDI, FLAC and more), or paste a YouTube, Instagram or TikTok link. Next, Klangio AI detects notes automatically using instrument-specific models — you can fine-tune transcription modes and settings. Then review the result in an online editor with a classic sheet-music view, a piano-roll view and automatic TAB generation, adjusting measures, notes, rhythm, tempo, key and time signature before exporting as PDF, quantized or unquantized MIDI, MusicXML, LilyPond or Guitar Pro. Because those formats open natively in MuseScore, Guitar Pro, Sibelius, Finale and every major DAW, Klangio slots straight into existing notation and production pipelines. Scores live in the Klangio songbook and sync across devices, so musicians can record an idea on their phone and finish the score on a desktop.