Piano-roll view
See every note on a grid of pitch against time, which makes wrong notes and uneven timing obvious at a glance.
MIDI Editor
fix the notes before they leave
Open a MIDI file or a fresh transcription in a browser piano roll, correct what is wrong, and export a clean part.
The editor concentrates on the jobs that come right after conversion: pitch correction, timing clean-up and note removal. It keeps the interface small so those edits are quick.
Because it runs in the browser, it also works for quick changes to MIDI files you already own, such as transposing a part or cutting an intro before sending it to a collaborator.

Transcriptions are rarely perfect on the first pass. The MIDI editor exists so you can fix them where they were made, without installing software or moving files around.
Drag notes to new pitches, trim or stretch their lengths, delete stray hits, and play the result back instantly. When it sounds right, export a standard MIDI file for any instrument or DAW.
See every note on a grid of pitch against time, which makes wrong notes and uneven timing obvious at a glance.
Select, move, resize and delete notes with the mouse, transpose or quantize a selection, and hear each change during playback.
Save the corrected part as a standard MIDI file that keeps pitch and timing exactly as edited.

Most clean-ups take a few minutes once you know what to listen for.
Open a transcription from Audio to MIDI or import a MIDI file you already have.
Play the part, stop where something sounds wrong, and fix the offending notes directly on the grid.
Download the edited MIDI and load it into your instrument, notation app or project.
Remove ghost notes and fix octave errors left by conversion before you build on the part.
Shorten an intro, move a phrase, or change a few pitches without opening a full production suite.
Send collaborators a tidy MIDI file that plays correctly on their instruments from the first bar.
Correct wrong notes first; rhythmic problems are easier to judge once the melody is right.
Perfectly aligned notes can sound stiff. Tighten only the timing that actually distracts.
Mistakes often hide in the last bars. Play the whole part once more before exporting.
No. The editor runs in a modern desktop browser and plays notes back directly in the page.
Yes. Import a standard MIDI file, edit its notes, and export it again.
No. It is designed for fast note corrections. Mixing, sound design and multi-track production still belong in your main software.
Yes. Transcriptions from Audio to MIDI can be reopened in the editor from your SeedAudio workspace.
Load a transcription or a MIDI file, fix the notes that are off, and export a part you can trust.
Open the MIDI editor