Convert Piano Audio to MIDI
Choose a clear piano recording with a melody or chord progression. Preview the detected notes in the piano roll, then open the MIDI file in your DAW to correct missed or extra notes.
Local AI processing. No uploads. No account needed.
Free AI Audio to MIDI Converter
Convert a short piano, guitar, or vocal recording into editable MIDI notes. Choose a passage, preview the detected notes, and download a MIDI file for your DAW.
Selection
Free. No sign-in. No credits.
Preview Your MIDI Notes
Choose an audio file and select Convert to MIDI. The detected notes will appear here for playback and review.
MIDI preview uses a simple synthesized tone. MIDI stores notes, not the original audio or instrument sound.
Powered by Spotify Basic Pitch (Apache-2.0). MusicGo is not affiliated with Spotify. Basic Pitch ↗
How to Convert Audio to MIDI Online
- 01
Choose a Short Passage
Open an audio file and choose a section with clear notes. A solo instrument or an unaccompanied vocal usually gives a cleaner result.
- 02
Convert the Selection to MIDI
Select Convert to MIDI to detect notes in the selected passage. If quiet notes are missing or extra notes appear, adjust the detection settings and convert again.
- 03
Preview and Download the Notes
Compare the recording with the synthesized preview and check the notes in the piano roll. Download the MIDI file for your DAW, or export the detected notes as a CSV.
Transcribe Piano, Guitar, and Vocal Melodies
Turn a Guitar Riff into MIDI
Start with a clean riff or a short instrumental line. Preview the detected notes and check the timing before exporting. Heavy effects and reverb can make notes harder to detect.
Turn a Sung or Hummed Melody into MIDI
Record a short melody without a backing track. After conversion, listen for octave jumps and missed notes, then download the MIDI to develop the idea in your DAW.
Conversion example
Hear a Real Audio-to-MIDI Example
An original synthesized piano-chord phrase, transcribed with the same Basic Pitch model. This example is separate from your recording and editor results.
Example duration: 7.5 seconds · Onset 0.5 · Sustain 0.3 · Minimum note 0.12 seconds
Compare the quiet E5 near 5.5 seconds with the detected notes. A quiet note can be missed; review the piano roll and correct the MIDI before using it.
Download example MIDIHow to Get Cleaner MIDI Notes
- Extra weak notes? Raise the onset or sustain threshold, or increase the minimum note length. Then convert again and compare the result.
- Quiet notes missing? Lower the thresholds a little and convert again. Listen for added noise as well as recovered notes.
- Timing or pitch looks wrong? Use a clearer solo recording with less noise, reverb and overlapping sound. Check octave jumps and repeated notes by ear.
- Review individual notes in your DAW or MIDI editor. Basic Pitch does not separate instruments, detect the original BPM or guarantee a perfect transcription.
What Does a MIDI File Contain?
Audio is a recording of sound. MIDI is a set of instructions: which notes to play, when they start, how long they last and how strongly they are played. MusicGo uses Basic Pitch to estimate those events from your recording and save an editable MIDI file. It is a transcription starting point, ready for review in your DAW.
Your Recording Stays on Your Device
The app and AI model download to your browser. Your recording and detected notes are processed on your device, without an account, uploads or credits. Download the MIDI before you close the page.
Audio to MIDI Questions, Answered
Is This AI Audio to MIDI Converter Free?
Yes. Conversion, preview and MIDI download are free, without an account, subscription or MusicGo credits. The model runs on your device.
Does My Audio Leave the Browser?
No. The browser downloads the app and Basic Pitch model, then processes your recording locally in a worker. Your audio and MIDI are not uploaded or saved to your account. Download your result before leaving the page.
What Recordings Work Best for Audio to MIDI?
Basic Pitch works best on one instrument at a time, including a clear melody or chords played by the same instrument. Piano, guitar and vocal recordings can be useful starting points. Full mixes, percussion, noise and effects can produce inaccurate or extra notes. Chords played on one instrument can be detected. Overlapping instruments and loud drums can lead to missed or extra notes.
Can I Convert MP3 or WAV to MIDI?
Yes. Open an MP3 or WAV file, choose the passage you want to transcribe, and select Convert to MIDI. You can also open M4A, AAC, FLAC, OGG, and WebM audio if your browser can decode it.
How Long Can My Recording Be?
Choose a file up to 50 MB on desktop or 20 MB on mobile. Each conversion uses a selected passage from 0.5 seconds up to 5 minutes on desktop or 3 minutes on mobile. There is also a decoded-memory safety limit. Long passages take more processing time; try a short passage first.
Will MIDI Sound Exactly Like My Recording?
The MIDI file stores detected notes, and the preview plays them with a synthesized tone. It contains pitch, start time, duration and velocity on one piano track, without pitch bends or instrument separation. The MIDI does not contain the original recorded sound. Choose your own instrument in a DAW.
Does Changing the BPM Change Note Timing?
The BPM field sets the exported MIDI file’s project tempo metadata. Detecting the original beat and quantizing notes are separate tasks. Each detected note keeps its timing in seconds; your DAW can apply further timing edits.
Can I Fix the Detected Notes?
You can change the pitch range filter and rerun detection with different thresholds or minimum note lengths. For moving, adding or deleting individual notes, download the MIDI and use a compatible DAW or MIDI Editor.
Why Does Transcription Take Time or Return No Notes?
Processing depends on your device and selected duration. Short clips are easier to process. Silence or unclear recordings may produce no notes; try a clearer phrase, lower detection thresholds or another browser. Results are estimates and should be checked by ear.
Turn a Recording into Editable MIDI Notes
Start with a short musical phrase. Keep your recording local and take the notes into your next project.
Continue your audio workflow