What the conversion does to your notes
Notation programs import MIDI themselves, and often badly: a slightly early note becomes a 64th rest, a held chord a knot of ties. Here every note is put on a 32nd-note grid (or its triplet), split at the beats, and written as the note values a musician would read, the same way SheetVideo engraves scores on its videos.
The converted score is engraved below the drop zone before you download it, so you see what your notation program will open.
The file is read in your browser and never uploaded: there is no server on the other end that sees it.