Workflow · 3 min read

Clean up a MIDI file without opening a DAW

Transpose a borrowed MIDI, move or duplicate selected notes, delete what you don't want, and re-export — all in your browser.

A rough MIDI conversion does not need to be perfect before it becomes useful. Start with the musical idea that is already there, make the few edits that clarify it, then export a cleaner draft for the next writing or production step.

Open → review → edit → export

  • If the file came from Audio to MIDI, choose Open in MIDI Editor after conversion; otherwise import the MIDI file you already have.
  • Listen once before editing and identify the one phrase, timing problem, or register issue that matters most.
  • Transpose, move, duplicate, or delete notes only when the change makes that musical idea clearer.
  • Export the revised MIDI when the draft communicates the part you want to keep.

Use a before-and-after target

Before: a converted melody may contain one extra note, a phrase that starts late, or a repeated idea that is too short. After: the main contour is easy to hear, the phrase lands where you expect, and the repeated material supports the next section. This small target keeps editing from becoming an unfocused rewrite.

Re-convert when that is faster than editing

Editing is most useful when the MIDI already contains the right musical shape. If most pitches are wrong or the source is a dense full mix, return to Audio to MIDI with a shorter, cleaner recording rather than trying to repair every note by hand.

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