Short description of WIDI Recognition System Standard 4.03: Transcribe any recorded music to MIDI! WIDI Recognition System is capable of recognizing polyphonic stereo Audio files (MP3, Wave, CD) to MIDI in seconds. A wide range of presets for different music, including drum tracks, are available. WIDI can be used in real-time as well, allowing you to control your synthesizer with voice or a musical instrument. A Recognition Wizard will help you get a converted MIDI file almost immediately!