Kanto Audio Editor is a powerful midi&mp3 editor tool to customize your mid, kar and mp3 songs. It allows you to change key, volume and tempo and save the result in a new audio file. You can also convert your midi files to mp3 format using soundfont embedded in the program. Other features: mp3 key shifter, mid key shifter, mp3 volume and tempo changer, mid key transposer, kar to mp3 converter, mp3 merger (to create medley songs), mid/kar joiner. It allows you also to remove tracks from midi files or change the instruments of the MIDI file.