There are a couple of free MP3 to MIDI converters that you can use. WIDI Recognition System This software allows users to get scores from recorded music create arrangements and extract musical lines etc. It can also be used as a MP3 to MIDI converter. iFunia Video Converter iFunia video converter for Mac s is a software program to convert videos and audios to various different formats. 4+ preset formats and quality lossless conversion are supported. This Mac video converter can also rip DVD to various formatspress video and audio files download videos from YouTube and 1+ other sites burn video to DVD and edit videos. You can use it as a MP3 to MIDI converter. Bear File Converter Bear File Converter s is an online file converter that can convert audios to MIDI files. It supports several input formats including MP3WAV OGG etc. Just like iFunia Video Converter for Mac this MP3 to MIDI converter can also process multiple files at the same time.